{"id":4377,"date":"2024-09-30T16:55:07","date_gmt":"2024-09-30T16:55:07","guid":{"rendered":"https:\/\/content.one.lumenlearning.com\/collegealgebra\/?post_type=chapter&#038;p=4377"},"modified":"2024-11-21T18:08:55","modified_gmt":"2024-11-21T18:08:55","slug":"power-and-polynomial-functions-get-stronger","status":"publish","type":"chapter","link":"https:\/\/content.one.lumenlearning.com\/collegealgebra\/chapter\/power-and-polynomial-functions-get-stronger\/","title":{"raw":"Power and Polynomial Functions: Get Stronger","rendered":"Power and Polynomial Functions: Get Stronger"},"content":{"raw":"<h2><span data-sheets-root=\"1\">Introduction to Power and Polynomial Functions<\/span><\/h2>\r\n<p id=\"fs-id1165137807114\">For the following exercises, identify the function as a power function, a polynomial function, or neither.<\/p>\r\n\r\n<ol style=\"list-style-type: decimal;\">\r\n \t<li>[latex]f(x)=(x^2)^3[\/latex]<\/li>\r\n \t<li>[latex]f(x)=\\frac{x^2}{x^2\u22121}[\/latex]<\/li>\r\n \t<li>[latex]f(x)=3^{x+1}[\/latex]<\/li>\r\n<\/ol>\r\nFor the following exercises, find the degree and leading coefficient for the given polynomial.\r\n<ol style=\"list-style-type: decimal;\" start=\"4\">\r\n \t<li>[latex]7\u22122x^2[\/latex]<\/li>\r\n \t<li>[latex]x(4\u2212x^2)(2x+1)[\/latex]<\/li>\r\n<\/ol>\r\nFor the following exercises, determine the end behavior of the functions.\r\n<ol style=\"list-style-type: decimal;\" start=\"6\">\r\n \t<li>[latex]f(x)=x^4[\/latex]<\/li>\r\n \t<li>[latex]f(x)=\u2212x^4[\/latex]<\/li>\r\n \t<li>[latex]f(x)=\u22122x^4\u22123x^2+x\u22121[\/latex]<\/li>\r\n \t<li>[latex]f(x)=x^2(2x^3-x+1)[\/latex]<\/li>\r\n<\/ol>\r\nFor the following exercises, find the intercepts of the functions.\r\n<ol style=\"list-style-type: decimal;\" start=\"10\">\r\n \t<li>[latex]f(t)=2(t\u22121)(t+2)(t\u22123)[\/latex]<\/li>\r\n \t<li>[latex]f(x)=x^4\u221216[\/latex]<\/li>\r\n \t<li>[latex]f(x)=x(x^2\u22122x\u22128)[\/latex]<\/li>\r\n<\/ol>\r\nFor the following exercises, determine the least possible degree of the polynomial function shown.\r\n<ol style=\"list-style-type: decimal;\" start=\"13\">\r\n \t<li><img src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/963af2d81970d35318353ce428be341c32dfd9ae\" alt=\"Graph of an odd-degree polynomial.\" \/><\/li>\r\n \t<li><img src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/b3011ad84249600636c44a655ca89e3f7a460cff\" alt=\"Graph of an odd-degree polynomial.\" \/><\/li>\r\n \t<li><img src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/5bf930365b5556cb65b5c7ba204363e4d56b91b4\" alt=\"Graph of an odd-degree polynomial.\" \/><\/li>\r\n \t<li><img class=\"alignnone size-full wp-image-5971\" src=\"https:\/\/content-cdn.one.lumenlearning.com\/wp-content\/uploads\/sites\/42\/2024\/09\/30154511\/bb0e8b0ed8bfc37e1a6bde3f7f02e5729b13c004.jpg\" alt=\"Graph of an odd-degree polynomial.\" width=\"359\" height=\"372\" \/><\/li>\r\n<\/ol>\r\nFor the following exercises, determine whether the graph of the function provided is a graph of a polynomial function. If so, determine the number of turning points and the least possible degree for the function.\r\n<ol style=\"list-style-type: decimal;\" start=\"17\">\r\n \t<li><img src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/ce48d257f1a3cb48902a0b9dd376ae0af1508f19\" alt=\"Graph of an odd-degree polynomial.\" \/><\/li>\r\n \t<li><img src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/6354507f473cea08fd00c937803cabb1d12e0330\" alt=\"Graph of an even-degree polynomial.\" \/><\/li>\r\n \t<li><img class=\"alignnone size-full wp-image-5972\" src=\"https:\/\/content-cdn.one.lumenlearning.com\/wp-content\/uploads\/sites\/42\/2024\/09\/30154556\/b450653f04d470ac0f13a5dddd46c1345058c2f8.jpg\" alt=\"Graph of an odd-degree polynomial.\" width=\"287\" height=\"297\" \/><\/li>\r\n \t<li><img class=\"alignnone size-full wp-image-5973\" src=\"https:\/\/content-cdn.one.lumenlearning.com\/wp-content\/uploads\/sites\/42\/2024\/09\/30154617\/616dc61158efaab35cd7618685d5368852167f76.jpg\" alt=\"Graph of an odd-degree polynomial.\" width=\"287\" height=\"297\" \/><\/li>\r\n \t<li class=\"whitespace-normal break-words\">[latex]V(m)=(3+2m)^3[\/latex], where [latex]m[\/latex] is the number of minutes elapsed.<\/li>\r\n \t<li class=\"whitespace-normal break-words\">[latex]V(x)=x(8-2x)^2[\/latex], where [latex]x[\/latex] is the length of the square's side in inches.<\/li>\r\n<\/ol>\r\n<h2><span data-sheets-root=\"1\">Graphs of Polynomial Functions<\/span><\/h2>\r\nFor the following exercises, find the [latex]x[\/latex]- or [latex]t[\/latex]-intercepts of the polynomial functions.\r\n<ol style=\"list-style-type: decimal;\">\r\n \t<li>[latex]C(t)=3(t+2)(t\u22123)(t+5)[\/latex]<\/li>\r\n \t<li>[latex]C(t)=2t(t\u22123)(t+1)^2[\/latex]<\/li>\r\n \t<li>[latex]C(t)=4t^4+12t^3\u221240t^2[\/latex]<\/li>\r\n \t<li>[latex]f(x)=x^3+x^2\u221220x[\/latex]<\/li>\r\n \t<li>[latex]f(x)=x^3+x^2\u22124x-4[\/latex]<\/li>\r\n \t<li>[latex]f(x)=2x^3-x^2\u22128x+4[\/latex]<\/li>\r\n \t<li class=\"whitespace-normal break-words\">[latex]f(x)=2x^4+6x^2-8[\/latex]<\/li>\r\n \t<li class=\"whitespace-normal break-words\">[latex]f(x)=x^6-2x^4-3x^2[\/latex]<\/li>\r\n \t<li class=\"whitespace-normal break-words\">[latex]f(x)=x^5-5x^3+4x[\/latex]<\/li>\r\n<\/ol>\r\nFor the following exercises, use the Intermediate Value Theorem to confirm that the given polynomial has at least one zero within the given interval.\r\n<ol style=\"list-style-type: decimal;\" start=\"10\">\r\n \t<li>[latex]f(x)=x^3\u22129x[\/latex], between [latex]x=2[\/latex] and [latex]x=4[\/latex].<\/li>\r\n \t<li>[latex]f(x)=\u2212x^4+4[\/latex], between [latex]x=1[\/latex] and [latex]x=3[\/latex].<\/li>\r\n \t<li>[latex]f(x)=x^3\u2212100x+2[\/latex], between [latex]x=0.01[\/latex] and [latex]x=0.1[\/latex].<\/li>\r\n<\/ol>\r\nFor the following exercises, find the zeros and give the multiplicity of each.\r\n<ol style=\"list-style-type: decimal;\" start=\"13\">\r\n \t<li>[latex]f(x)=x^2(2x+3)^5(x\u22124)^2[\/latex]<\/li>\r\n \t<li>[latex]f(x)=x^2(x^2+4x+4)[\/latex]<\/li>\r\n \t<li>[latex]f(x)=(3x+2)^5(x^2\u221210x+25)[\/latex]<\/li>\r\n \t<li class=\"whitespace-normal break-words\">[latex]f(x)=x^6-x^5-2x^4[\/latex]<\/li>\r\n \t<li class=\"whitespace-normal break-words\">[latex]f(x)=4x^5-12x^4+9x^3[\/latex]<\/li>\r\n \t<li class=\"whitespace-normal break-words\">[latex]f(x)=4x^4(9x^4-12x^3+4x^2)[\/latex]<\/li>\r\n<\/ol>\r\nFor the following exercises, graph the polynomial functions. Note [latex]x[\/latex]- and [latex]y[\/latex]- intercepts, multiplicity, and end behavior.\r\n<ol style=\"list-style-type: decimal;\" start=\"19\">\r\n \t<li>[latex]g(x)=(x+4)(x\u22121)^2[\/latex]<\/li>\r\n \t<li>[latex]k(x)=(x\u22123)^3(x\u22122)^2[\/latex]<\/li>\r\n \t<li>[latex]n(x)=\u22123x(x+2)(x\u22124)[\/latex]<\/li>\r\n<\/ol>\r\nFor the following exercises, use the graphs to write the formula for a polynomial function of least degree.\r\n<ol style=\"list-style-type: decimal;\" start=\"22\">\r\n \t<li><img src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/430a35901210322268bed021d50f9455fda61041\" alt=\"Graph of a negative odd-degree polynomial with zeros at x=-3, 1, and 3.\" \/><\/li>\r\n \t<li><img src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/c1d36636f5704a56eedad95516fff134daacdd4c\" alt=\"Graph of a positive odd-degree polynomial with zeros at x=-2, and 3.\" \/><\/li>\r\n<\/ol>\r\nFor the following exercises, use the graph to identify zeros and multiplicity.\r\n<ol style=\"list-style-type: decimal;\" start=\"24\">\r\n \t<li><img src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/b60d243cb3d4a185ad3ac8cbbcab425d6cde208d\" alt=\"Graph of a negative even-degree polynomial with zeros at x=-4, -2, 1, and 3.\" \/><\/li>\r\n \t<li><img src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/8f7ea6c6b054f7e1719e3729e8afc077b22ee65c\" alt=\"Graph of a positive even-degree polynomial with zeros at x=-2,, and 3.\" \/><\/li>\r\n<\/ol>\r\nFor the following exercises, use the given information about the polynomial graph to write the equation.\r\n<ol style=\"list-style-type: decimal;\" start=\"26\">\r\n \t<li>Degree [latex]3[\/latex]. Zeros at [latex]x=\u20132, x=1[\/latex], and [latex]x=3[\/latex]. [latex]y[\/latex]-intercept at [latex](0,\u20134)[\/latex].<\/li>\r\n \t<li>Degree [latex]5[\/latex]. Roots of multiplicity [latex]2[\/latex] at [latex]x=3[\/latex] and [latex]x=1[\/latex], and a root of multiplicity [latex]1[\/latex] at [latex]x=\u20133[\/latex]. [latex]y[\/latex]-intercept at [latex](0,9)[\/latex].<\/li>\r\n \t<li>Degree [latex]5[\/latex]. Double zero at [latex]x=1[\/latex], and triple zero at [latex]x=3[\/latex]. Passes through the point [latex](2,15)[\/latex].<\/li>\r\n \t<li class=\"whitespace-normal break-words\">Degree 3. Zeros at [latex]x=-3[\/latex], [latex]x=-2[\/latex] and [latex]x=1[\/latex]. y-intercept at [latex](0,12)[\/latex].<\/li>\r\n \t<li class=\"whitespace-normal break-words\">Degree 4. Roots of multiplicity 2 at [latex]x=\\dfrac{1}{2}[\/latex] and roots of multiplicity 1 at [latex]x=6[\/latex] and [latex]x=-2[\/latex]. y-intercept at [latex](0,18)[\/latex].<\/li>\r\n<\/ol>\r\n<h2><span data-sheets-root=\"1\">Dividing Polynomials<\/span><\/h2>\r\nFor the following exercises, use long division to divide. Specify the quotient and the remainder.\r\n<ol style=\"list-style-type: decimal;\" start=\"1\">\r\n \t<li>[latex](x^2+5x\u22121)\u00f7(x\u22121)[\/latex]<\/li>\r\n \t<li>[latex](3x^2+23x+14)\u00f7(x+7)[\/latex]<\/li>\r\n \t<li>[latex](6x^2\u221225x\u221225)\u00f7(6x+5)[\/latex]<\/li>\r\n \t<li>[latex](2x^2\u22123x+2)\u00f7(x+2)[\/latex]<\/li>\r\n<\/ol>\r\nFor the following exercises, use synthetic division to find the quotient. Ensure the equation is in the form required by synthetic division. (Hint: divide the dividend and divisor by the coefficient of the linear term in the divisor.)\r\n<ol style=\"list-style-type: decimal;\" start=\"5\">\r\n \t<li>[latex](2x^3\u22126x^2\u22127x+6)\u00f7(x\u22124)[\/latex]<\/li>\r\n \t<li>[latex](4x^3\u221212x^2\u22125x\u22121)\u00f7(2x+1)[\/latex]<\/li>\r\n \t<li>[latex](3x^3\u22122x^2+x\u22124)\u00f7(x+3)[\/latex]<\/li>\r\n \t<li>[latex](2x^3+7x^2\u221213x\u22123)\u00f7(2x\u22123)[\/latex]<\/li>\r\n \t<li>[latex](4x^3-5x^2+13)\u00f7(x+4)[\/latex]<\/li>\r\n \t<li>[latex](x^3-21x^2+147x\u2212343)\u00f7(x-7)[\/latex]<\/li>\r\n<\/ol>\r\nFor the following exercises, use synthetic division to determine whether the first expression is a factor of the second. If it is, indicate the factorization.\r\n<ol style=\"list-style-type: decimal;\" start=\"11\">\r\n \t<li>[latex]x\u22122[\/latex], [latex]3x^4\u22126x^3\u22125x+10[\/latex]<\/li>\r\n \t<li>[latex]x\u22122[\/latex], [latex]4x^4\u221215x^2\u22124[\/latex]<\/li>\r\n \t<li>[latex]x+\\frac{1}{3}[\/latex], [latex]3x^4+x^3\u22123x+1[\/latex]<\/li>\r\n<\/ol>\r\n<h2><span data-sheets-root=\"1\">Zeros of Polynomial Functions<\/span><\/h2>\r\nFor the following exercises, use the Remainder Theorem to find the remainder.\r\n<ol style=\"list-style-type: decimal;\">\r\n \t<li>[latex](3x^3\u22122x^2+x\u22124)\u00f7(x+3)[\/latex]<\/li>\r\n \t<li>[latex](\u22123x^2+6x+24)\u00f7(x\u22124)[\/latex]<\/li>\r\n \t<li>[latex](x^4\u22121)\u00f7(x\u22124)[\/latex]<\/li>\r\n \t<li>[latex](4x^3+5x^2\u22122x+7)\u00f7(x+2)[\/latex]<\/li>\r\n<\/ol>\r\nFor the following exercises, use the given factor and the Factor Theorem to find all real zeros for the given polynomial function.\r\n<ol style=\"list-style-type: decimal;\" start=\"5\">\r\n \t<li>[latex]f(x)=2x^3+x^2\u22125x+2; x+2[\/latex]<\/li>\r\n \t<li>[latex]f(x)=2x^3+3x^2+x+6; x+2[\/latex]<\/li>\r\n \t<li>[latex]x^3+3x^2+4x+12; x+3[\/latex]<\/li>\r\n \t<li>[latex]2x^3+5x^2\u221212x\u221230; 2x+5[\/latex]<\/li>\r\n<\/ol>\r\nFor the following exercises, use the Rational Zero Theorem to find the real solution(s) to each equation.\r\n<ol style=\"list-style-type: decimal;\" start=\"9\">\r\n \t<li>[latex]2x^3+7x^2\u221210x\u221224=0[\/latex]<\/li>\r\n \t<li>[latex]x^3+5x^2\u221216x\u221280=0[\/latex]<\/li>\r\n \t<li>[latex]2x^3\u22123x^2\u221232x\u221215=0[\/latex]<\/li>\r\n \t<li>[latex]2x^3\u22123x^2\u2212x+1=0[\/latex]<\/li>\r\n \t<li>[latex]2x^3\u22125x^2+9x-9=0[\/latex]<\/li>\r\n<\/ol>\r\n<p id=\"fs-id1165135517156\">For the following exercises, find all complex solutions (real and non-real).<\/p>\r\n\r\n<ol start=\"14\">\r\n \t<li class=\"whitespace-normal break-words\">[latex]x^3-8x^2+25x-26=0[\/latex] Solutions: [latex]x=2[\/latex], [latex]x=3\\pm i[\/latex]<\/li>\r\n \t<li class=\"whitespace-normal break-words\">[latex]3x^3-4x^2+11x+10=0[\/latex] Solutions: [latex]x=-1[\/latex], [latex]x=\\dfrac{2\\pm i\\sqrt{11}}{3}[\/latex]<\/li>\r\n \t<li class=\"whitespace-normal break-words\">[latex]2x^3-3x^2+32x+17=0[\/latex] Solutions: [latex]x=-1[\/latex], [latex]x=2\\pm2i[\/latex]<\/li>\r\n<\/ol>\r\nFor the following exercises, use Descartes\u2019 Rule to determine the possible number of positive and negative solutions. Confirm with the given graph.\r\n<ol start=\"17\">\r\n \t<li class=\"whitespace-normal break-words\">[latex]f(x)=x^4-x^2-1[\/latex]<\/li>\r\n \t<li class=\"whitespace-normal break-words\">[latex]f(x)=x^3-2x^2+x-1[\/latex]<\/li>\r\n \t<li class=\"whitespace-normal break-words\">[latex]f(x)=2x^3+37x^2+200x+300[\/latex]<\/li>\r\n \t<li class=\"whitespace-normal break-words\">[latex]f(x)=2x^4-5x^3-5x^2+5x+3[\/latex]<\/li>\r\n \t<li class=\"whitespace-normal break-words\">[latex]f(x)=10x^4-21x^2+11[\/latex]<\/li>\r\n<\/ol>\r\nFor the following exercises, list all possible rational zeros for the functions.\r\n<ol style=\"list-style-type: decimal;\" start=\"22\">\r\n \t<li>[latex]f(x)=2x^3+3x^2\u22128x+5[\/latex]<\/li>\r\n \t<li>[latex]f(x)=6x^4\u221210x^2+13x+1[\/latex]<\/li>\r\n<\/ol>\r\n<p id=\"fs-id1165134109618\">For the following exercises, find the dimensions of the box described.<\/p>\r\n\r\n<ol start=\"24\">\r\n \t<li class=\"whitespace-normal break-words\">The length is twice as long as the width. The height is [latex]2[\/latex] inches greater than the width. The volume is [latex]192[\/latex] cubic inches.<\/li>\r\n \t<li class=\"whitespace-normal break-words\">The length is one inch more than the width, which is one inch more than the height. The volume is [latex]86.625[\/latex] cubic inches.<\/li>\r\n \t<li class=\"whitespace-normal break-words\">The length is [latex]3[\/latex] inches more than the width. The width is [latex]2[\/latex] inches more than the height. The volume is [latex]120[\/latex] cubic inches.<\/li>\r\n<\/ol>\r\n<p id=\"fs-id1165134043653\">For the following exercises, find the dimensions of the right circular cylinder described.<\/p>\r\n\r\n<ol start=\"27\">\r\n \t<li class=\"whitespace-normal break-words\">The height is one less than one half the radius. The volume is [latex]72\\pi[\/latex] cubic meters.<\/li>\r\n \t<li class=\"whitespace-normal break-words\">The radius and height differ by two meters. The height is greater and the volume is [latex]28.125\\pi[\/latex] cubic meters.<\/li>\r\n<\/ol>","rendered":"<h2><span data-sheets-root=\"1\">Introduction to Power and Polynomial Functions<\/span><\/h2>\n<p id=\"fs-id1165137807114\">For the following exercises, identify the function as a power function, a polynomial function, or neither.<\/p>\n<ol style=\"list-style-type: decimal;\">\n<li>[latex]f(x)=(x^2)^3[\/latex]<\/li>\n<li>[latex]f(x)=\\frac{x^2}{x^2\u22121}[\/latex]<\/li>\n<li>[latex]f(x)=3^{x+1}[\/latex]<\/li>\n<\/ol>\n<p>For the following exercises, find the degree and leading coefficient for the given polynomial.<\/p>\n<ol style=\"list-style-type: decimal;\" start=\"4\">\n<li>[latex]7\u22122x^2[\/latex]<\/li>\n<li>[latex]x(4\u2212x^2)(2x+1)[\/latex]<\/li>\n<\/ol>\n<p>For the following exercises, determine the end behavior of the functions.<\/p>\n<ol style=\"list-style-type: decimal;\" start=\"6\">\n<li>[latex]f(x)=x^4[\/latex]<\/li>\n<li>[latex]f(x)=\u2212x^4[\/latex]<\/li>\n<li>[latex]f(x)=\u22122x^4\u22123x^2+x\u22121[\/latex]<\/li>\n<li>[latex]f(x)=x^2(2x^3-x+1)[\/latex]<\/li>\n<\/ol>\n<p>For the following exercises, find the intercepts of the functions.<\/p>\n<ol style=\"list-style-type: decimal;\" start=\"10\">\n<li>[latex]f(t)=2(t\u22121)(t+2)(t\u22123)[\/latex]<\/li>\n<li>[latex]f(x)=x^4\u221216[\/latex]<\/li>\n<li>[latex]f(x)=x(x^2\u22122x\u22128)[\/latex]<\/li>\n<\/ol>\n<p>For the following exercises, determine the least possible degree of the polynomial function shown.<\/p>\n<ol style=\"list-style-type: decimal;\" start=\"13\">\n<li><img decoding=\"async\" src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/963af2d81970d35318353ce428be341c32dfd9ae\" alt=\"Graph of an odd-degree polynomial.\" \/><\/li>\n<li><img decoding=\"async\" src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/b3011ad84249600636c44a655ca89e3f7a460cff\" alt=\"Graph of an odd-degree polynomial.\" \/><\/li>\n<li><img decoding=\"async\" src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/5bf930365b5556cb65b5c7ba204363e4d56b91b4\" alt=\"Graph of an odd-degree polynomial.\" \/><\/li>\n<li><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5971\" src=\"https:\/\/content-cdn.one.lumenlearning.com\/wp-content\/uploads\/sites\/42\/2024\/09\/30154511\/bb0e8b0ed8bfc37e1a6bde3f7f02e5729b13c004.jpg\" alt=\"Graph of an odd-degree polynomial.\" width=\"359\" height=\"372\" srcset=\"https:\/\/content-cdn.one.lumenlearning.com\/wp-content\/uploads\/sites\/42\/2024\/09\/30154511\/bb0e8b0ed8bfc37e1a6bde3f7f02e5729b13c004.jpg 359w, https:\/\/content-cdn.one.lumenlearning.com\/wp-content\/uploads\/sites\/42\/2024\/09\/30154511\/bb0e8b0ed8bfc37e1a6bde3f7f02e5729b13c004-290x300.jpg 290w, https:\/\/content-cdn.one.lumenlearning.com\/wp-content\/uploads\/sites\/42\/2024\/09\/30154511\/bb0e8b0ed8bfc37e1a6bde3f7f02e5729b13c004-65x67.jpg 65w, https:\/\/content-cdn.one.lumenlearning.com\/wp-content\/uploads\/sites\/42\/2024\/09\/30154511\/bb0e8b0ed8bfc37e1a6bde3f7f02e5729b13c004-225x233.jpg 225w, https:\/\/content-cdn.one.lumenlearning.com\/wp-content\/uploads\/sites\/42\/2024\/09\/30154511\/bb0e8b0ed8bfc37e1a6bde3f7f02e5729b13c004-350x363.jpg 350w\" sizes=\"(max-width: 359px) 100vw, 359px\" \/><\/li>\n<\/ol>\n<p>For the following exercises, determine whether the graph of the function provided is a graph of a polynomial function. If so, determine the number of turning points and the least possible degree for the function.<\/p>\n<ol style=\"list-style-type: decimal;\" start=\"17\">\n<li><img decoding=\"async\" src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/ce48d257f1a3cb48902a0b9dd376ae0af1508f19\" alt=\"Graph of an odd-degree polynomial.\" \/><\/li>\n<li><img decoding=\"async\" src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/6354507f473cea08fd00c937803cabb1d12e0330\" alt=\"Graph of an even-degree polynomial.\" \/><\/li>\n<li><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5972\" src=\"https:\/\/content-cdn.one.lumenlearning.com\/wp-content\/uploads\/sites\/42\/2024\/09\/30154556\/b450653f04d470ac0f13a5dddd46c1345058c2f8.jpg\" alt=\"Graph of an odd-degree polynomial.\" width=\"287\" height=\"297\" srcset=\"https:\/\/content-cdn.one.lumenlearning.com\/wp-content\/uploads\/sites\/42\/2024\/09\/30154556\/b450653f04d470ac0f13a5dddd46c1345058c2f8.jpg 287w, https:\/\/content-cdn.one.lumenlearning.com\/wp-content\/uploads\/sites\/42\/2024\/09\/30154556\/b450653f04d470ac0f13a5dddd46c1345058c2f8-65x67.jpg 65w, https:\/\/content-cdn.one.lumenlearning.com\/wp-content\/uploads\/sites\/42\/2024\/09\/30154556\/b450653f04d470ac0f13a5dddd46c1345058c2f8-225x233.jpg 225w\" sizes=\"(max-width: 287px) 100vw, 287px\" \/><\/li>\n<li><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5973\" src=\"https:\/\/content-cdn.one.lumenlearning.com\/wp-content\/uploads\/sites\/42\/2024\/09\/30154617\/616dc61158efaab35cd7618685d5368852167f76.jpg\" alt=\"Graph of an odd-degree polynomial.\" width=\"287\" height=\"297\" srcset=\"https:\/\/content-cdn.one.lumenlearning.com\/wp-content\/uploads\/sites\/42\/2024\/09\/30154617\/616dc61158efaab35cd7618685d5368852167f76.jpg 287w, https:\/\/content-cdn.one.lumenlearning.com\/wp-content\/uploads\/sites\/42\/2024\/09\/30154617\/616dc61158efaab35cd7618685d5368852167f76-65x67.jpg 65w, https:\/\/content-cdn.one.lumenlearning.com\/wp-content\/uploads\/sites\/42\/2024\/09\/30154617\/616dc61158efaab35cd7618685d5368852167f76-225x233.jpg 225w\" sizes=\"(max-width: 287px) 100vw, 287px\" \/><\/li>\n<li class=\"whitespace-normal break-words\">[latex]V(m)=(3+2m)^3[\/latex], where [latex]m[\/latex] is the number of minutes elapsed.<\/li>\n<li class=\"whitespace-normal break-words\">[latex]V(x)=x(8-2x)^2[\/latex], where [latex]x[\/latex] is the length of the square&#8217;s side in inches.<\/li>\n<\/ol>\n<h2><span data-sheets-root=\"1\">Graphs of Polynomial Functions<\/span><\/h2>\n<p>For the following exercises, find the [latex]x[\/latex]&#8211; or [latex]t[\/latex]-intercepts of the polynomial functions.<\/p>\n<ol style=\"list-style-type: decimal;\">\n<li>[latex]C(t)=3(t+2)(t\u22123)(t+5)[\/latex]<\/li>\n<li>[latex]C(t)=2t(t\u22123)(t+1)^2[\/latex]<\/li>\n<li>[latex]C(t)=4t^4+12t^3\u221240t^2[\/latex]<\/li>\n<li>[latex]f(x)=x^3+x^2\u221220x[\/latex]<\/li>\n<li>[latex]f(x)=x^3+x^2\u22124x-4[\/latex]<\/li>\n<li>[latex]f(x)=2x^3-x^2\u22128x+4[\/latex]<\/li>\n<li class=\"whitespace-normal break-words\">[latex]f(x)=2x^4+6x^2-8[\/latex]<\/li>\n<li class=\"whitespace-normal break-words\">[latex]f(x)=x^6-2x^4-3x^2[\/latex]<\/li>\n<li class=\"whitespace-normal break-words\">[latex]f(x)=x^5-5x^3+4x[\/latex]<\/li>\n<\/ol>\n<p>For the following exercises, use the Intermediate Value Theorem to confirm that the given polynomial has at least one zero within the given interval.<\/p>\n<ol style=\"list-style-type: decimal;\" start=\"10\">\n<li>[latex]f(x)=x^3\u22129x[\/latex], between [latex]x=2[\/latex] and [latex]x=4[\/latex].<\/li>\n<li>[latex]f(x)=\u2212x^4+4[\/latex], between [latex]x=1[\/latex] and [latex]x=3[\/latex].<\/li>\n<li>[latex]f(x)=x^3\u2212100x+2[\/latex], between [latex]x=0.01[\/latex] and [latex]x=0.1[\/latex].<\/li>\n<\/ol>\n<p>For the following exercises, find the zeros and give the multiplicity of each.<\/p>\n<ol style=\"list-style-type: decimal;\" start=\"13\">\n<li>[latex]f(x)=x^2(2x+3)^5(x\u22124)^2[\/latex]<\/li>\n<li>[latex]f(x)=x^2(x^2+4x+4)[\/latex]<\/li>\n<li>[latex]f(x)=(3x+2)^5(x^2\u221210x+25)[\/latex]<\/li>\n<li class=\"whitespace-normal break-words\">[latex]f(x)=x^6-x^5-2x^4[\/latex]<\/li>\n<li class=\"whitespace-normal break-words\">[latex]f(x)=4x^5-12x^4+9x^3[\/latex]<\/li>\n<li class=\"whitespace-normal break-words\">[latex]f(x)=4x^4(9x^4-12x^3+4x^2)[\/latex]<\/li>\n<\/ol>\n<p>For the following exercises, graph the polynomial functions. Note [latex]x[\/latex]&#8211; and [latex]y[\/latex]&#8211; intercepts, multiplicity, and end behavior.<\/p>\n<ol style=\"list-style-type: decimal;\" start=\"19\">\n<li>[latex]g(x)=(x+4)(x\u22121)^2[\/latex]<\/li>\n<li>[latex]k(x)=(x\u22123)^3(x\u22122)^2[\/latex]<\/li>\n<li>[latex]n(x)=\u22123x(x+2)(x\u22124)[\/latex]<\/li>\n<\/ol>\n<p>For the following exercises, use the graphs to write the formula for a polynomial function of least degree.<\/p>\n<ol style=\"list-style-type: decimal;\" start=\"22\">\n<li><img decoding=\"async\" src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/430a35901210322268bed021d50f9455fda61041\" alt=\"Graph of a negative odd-degree polynomial with zeros at x=-3, 1, and 3.\" \/><\/li>\n<li><img decoding=\"async\" src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/c1d36636f5704a56eedad95516fff134daacdd4c\" alt=\"Graph of a positive odd-degree polynomial with zeros at x=-2, and 3.\" \/><\/li>\n<\/ol>\n<p>For the following exercises, use the graph to identify zeros and multiplicity.<\/p>\n<ol style=\"list-style-type: decimal;\" start=\"24\">\n<li><img decoding=\"async\" src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/b60d243cb3d4a185ad3ac8cbbcab425d6cde208d\" alt=\"Graph of a negative even-degree polynomial with zeros at x=-4, -2, 1, and 3.\" \/><\/li>\n<li><img decoding=\"async\" src=\"https:\/\/openstax.org\/apps\/archive\/20231109.173216\/resources\/8f7ea6c6b054f7e1719e3729e8afc077b22ee65c\" alt=\"Graph of a positive even-degree polynomial with zeros at x=-2,, and 3.\" \/><\/li>\n<\/ol>\n<p>For the following exercises, use the given information about the polynomial graph to write the equation.<\/p>\n<ol style=\"list-style-type: decimal;\" start=\"26\">\n<li>Degree [latex]3[\/latex]. Zeros at [latex]x=\u20132, x=1[\/latex], and [latex]x=3[\/latex]. [latex]y[\/latex]-intercept at [latex](0,\u20134)[\/latex].<\/li>\n<li>Degree [latex]5[\/latex]. Roots of multiplicity [latex]2[\/latex] at [latex]x=3[\/latex] and [latex]x=1[\/latex], and a root of multiplicity [latex]1[\/latex] at [latex]x=\u20133[\/latex]. [latex]y[\/latex]-intercept at [latex](0,9)[\/latex].<\/li>\n<li>Degree [latex]5[\/latex]. Double zero at [latex]x=1[\/latex], and triple zero at [latex]x=3[\/latex]. Passes through the point [latex](2,15)[\/latex].<\/li>\n<li class=\"whitespace-normal break-words\">Degree 3. Zeros at [latex]x=-3[\/latex], [latex]x=-2[\/latex] and [latex]x=1[\/latex]. y-intercept at [latex](0,12)[\/latex].<\/li>\n<li class=\"whitespace-normal break-words\">Degree 4. Roots of multiplicity 2 at [latex]x=\\dfrac{1}{2}[\/latex] and roots of multiplicity 1 at [latex]x=6[\/latex] and [latex]x=-2[\/latex]. y-intercept at [latex](0,18)[\/latex].<\/li>\n<\/ol>\n<h2><span data-sheets-root=\"1\">Dividing Polynomials<\/span><\/h2>\n<p>For the following exercises, use long division to divide. Specify the quotient and the remainder.<\/p>\n<ol style=\"list-style-type: decimal;\" start=\"1\">\n<li>[latex](x^2+5x\u22121)\u00f7(x\u22121)[\/latex]<\/li>\n<li>[latex](3x^2+23x+14)\u00f7(x+7)[\/latex]<\/li>\n<li>[latex](6x^2\u221225x\u221225)\u00f7(6x+5)[\/latex]<\/li>\n<li>[latex](2x^2\u22123x+2)\u00f7(x+2)[\/latex]<\/li>\n<\/ol>\n<p>For the following exercises, use synthetic division to find the quotient. Ensure the equation is in the form required by synthetic division. (Hint: divide the dividend and divisor by the coefficient of the linear term in the divisor.)<\/p>\n<ol style=\"list-style-type: decimal;\" start=\"5\">\n<li>[latex](2x^3\u22126x^2\u22127x+6)\u00f7(x\u22124)[\/latex]<\/li>\n<li>[latex](4x^3\u221212x^2\u22125x\u22121)\u00f7(2x+1)[\/latex]<\/li>\n<li>[latex](3x^3\u22122x^2+x\u22124)\u00f7(x+3)[\/latex]<\/li>\n<li>[latex](2x^3+7x^2\u221213x\u22123)\u00f7(2x\u22123)[\/latex]<\/li>\n<li>[latex](4x^3-5x^2+13)\u00f7(x+4)[\/latex]<\/li>\n<li>[latex](x^3-21x^2+147x\u2212343)\u00f7(x-7)[\/latex]<\/li>\n<\/ol>\n<p>For the following exercises, use synthetic division to determine whether the first expression is a factor of the second. If it is, indicate the factorization.<\/p>\n<ol style=\"list-style-type: decimal;\" start=\"11\">\n<li>[latex]x\u22122[\/latex], [latex]3x^4\u22126x^3\u22125x+10[\/latex]<\/li>\n<li>[latex]x\u22122[\/latex], [latex]4x^4\u221215x^2\u22124[\/latex]<\/li>\n<li>[latex]x+\\frac{1}{3}[\/latex], [latex]3x^4+x^3\u22123x+1[\/latex]<\/li>\n<\/ol>\n<h2><span data-sheets-root=\"1\">Zeros of Polynomial Functions<\/span><\/h2>\n<p>For the following exercises, use the Remainder Theorem to find the remainder.<\/p>\n<ol style=\"list-style-type: decimal;\">\n<li>[latex](3x^3\u22122x^2+x\u22124)\u00f7(x+3)[\/latex]<\/li>\n<li>[latex](\u22123x^2+6x+24)\u00f7(x\u22124)[\/latex]<\/li>\n<li>[latex](x^4\u22121)\u00f7(x\u22124)[\/latex]<\/li>\n<li>[latex](4x^3+5x^2\u22122x+7)\u00f7(x+2)[\/latex]<\/li>\n<\/ol>\n<p>For the following exercises, use the given factor and the Factor Theorem to find all real zeros for the given polynomial function.<\/p>\n<ol style=\"list-style-type: decimal;\" start=\"5\">\n<li>[latex]f(x)=2x^3+x^2\u22125x+2; x+2[\/latex]<\/li>\n<li>[latex]f(x)=2x^3+3x^2+x+6; x+2[\/latex]<\/li>\n<li>[latex]x^3+3x^2+4x+12; x+3[\/latex]<\/li>\n<li>[latex]2x^3+5x^2\u221212x\u221230; 2x+5[\/latex]<\/li>\n<\/ol>\n<p>For the following exercises, use the Rational Zero Theorem to find the real solution(s) to each equation.<\/p>\n<ol style=\"list-style-type: decimal;\" start=\"9\">\n<li>[latex]2x^3+7x^2\u221210x\u221224=0[\/latex]<\/li>\n<li>[latex]x^3+5x^2\u221216x\u221280=0[\/latex]<\/li>\n<li>[latex]2x^3\u22123x^2\u221232x\u221215=0[\/latex]<\/li>\n<li>[latex]2x^3\u22123x^2\u2212x+1=0[\/latex]<\/li>\n<li>[latex]2x^3\u22125x^2+9x-9=0[\/latex]<\/li>\n<\/ol>\n<p id=\"fs-id1165135517156\">For the following exercises, find all complex solutions (real and non-real).<\/p>\n<ol start=\"14\">\n<li class=\"whitespace-normal break-words\">[latex]x^3-8x^2+25x-26=0[\/latex] Solutions: [latex]x=2[\/latex], [latex]x=3\\pm i[\/latex]<\/li>\n<li class=\"whitespace-normal break-words\">[latex]3x^3-4x^2+11x+10=0[\/latex] Solutions: [latex]x=-1[\/latex], [latex]x=\\dfrac{2\\pm i\\sqrt{11}}{3}[\/latex]<\/li>\n<li class=\"whitespace-normal break-words\">[latex]2x^3-3x^2+32x+17=0[\/latex] Solutions: [latex]x=-1[\/latex], [latex]x=2\\pm2i[\/latex]<\/li>\n<\/ol>\n<p>For the following exercises, use Descartes\u2019 Rule to determine the possible number of positive and negative solutions. Confirm with the given graph.<\/p>\n<ol start=\"17\">\n<li class=\"whitespace-normal break-words\">[latex]f(x)=x^4-x^2-1[\/latex]<\/li>\n<li class=\"whitespace-normal break-words\">[latex]f(x)=x^3-2x^2+x-1[\/latex]<\/li>\n<li class=\"whitespace-normal break-words\">[latex]f(x)=2x^3+37x^2+200x+300[\/latex]<\/li>\n<li class=\"whitespace-normal break-words\">[latex]f(x)=2x^4-5x^3-5x^2+5x+3[\/latex]<\/li>\n<li class=\"whitespace-normal break-words\">[latex]f(x)=10x^4-21x^2+11[\/latex]<\/li>\n<\/ol>\n<p>For the following exercises, list all possible rational zeros for the functions.<\/p>\n<ol style=\"list-style-type: decimal;\" start=\"22\">\n<li>[latex]f(x)=2x^3+3x^2\u22128x+5[\/latex]<\/li>\n<li>[latex]f(x)=6x^4\u221210x^2+13x+1[\/latex]<\/li>\n<\/ol>\n<p id=\"fs-id1165134109618\">For the following exercises, find the dimensions of the box described.<\/p>\n<ol start=\"24\">\n<li class=\"whitespace-normal break-words\">The length is twice as long as the width. The height is [latex]2[\/latex] inches greater than the width. The volume is [latex]192[\/latex] cubic inches.<\/li>\n<li class=\"whitespace-normal break-words\">The length is one inch more than the width, which is one inch more than the height. The volume is [latex]86.625[\/latex] cubic inches.<\/li>\n<li class=\"whitespace-normal break-words\">The length is [latex]3[\/latex] inches more than the width. The width is [latex]2[\/latex] inches more than the height. The volume is [latex]120[\/latex] cubic inches.<\/li>\n<\/ol>\n<p id=\"fs-id1165134043653\">For the following exercises, find the dimensions of the right circular cylinder described.<\/p>\n<ol start=\"27\">\n<li class=\"whitespace-normal break-words\">The height is one less than one half the radius. The volume is [latex]72\\pi[\/latex] cubic meters.<\/li>\n<li class=\"whitespace-normal break-words\">The radius and height differ by two meters. The height is greater and the volume is [latex]28.125\\pi[\/latex] cubic meters.<\/li>\n<\/ol>\n","protected":false},"author":15,"menu_order":35,"template":"","meta":{"_candela_citation":"[]","pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"part":206,"module-header":"practice","content_attributions":[],"internal_book_links":[],"video_content":null,"cc_video_embed_content":{"cc_scripts":"","media_targets":[]},"try_it_collection":null,"_links":{"self":[{"href":"https:\/\/content.one.lumenlearning.com\/collegealgebra\/wp-json\/pressbooks\/v2\/chapters\/4377"}],"collection":[{"href":"https:\/\/content.one.lumenlearning.com\/collegealgebra\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/content.one.lumenlearning.com\/collegealgebra\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/content.one.lumenlearning.com\/collegealgebra\/wp-json\/wp\/v2\/users\/15"}],"version-history":[{"count":5,"href":"https:\/\/content.one.lumenlearning.com\/collegealgebra\/wp-json\/pressbooks\/v2\/chapters\/4377\/revisions"}],"predecessor-version":[{"id":5975,"href":"https:\/\/content.one.lumenlearning.com\/collegealgebra\/wp-json\/pressbooks\/v2\/chapters\/4377\/revisions\/5975"}],"part":[{"href":"https:\/\/content.one.lumenlearning.com\/collegealgebra\/wp-json\/pressbooks\/v2\/parts\/206"}],"metadata":[{"href":"https:\/\/content.one.lumenlearning.com\/collegealgebra\/wp-json\/pressbooks\/v2\/chapters\/4377\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/content.one.lumenlearning.com\/collegealgebra\/wp-json\/wp\/v2\/media?parent=4377"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/content.one.lumenlearning.com\/collegealgebra\/wp-json\/pressbooks\/v2\/chapter-type?post=4377"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/content.one.lumenlearning.com\/collegealgebra\/wp-json\/wp\/v2\/contributor?post=4377"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/content.one.lumenlearning.com\/collegealgebra\/wp-json\/wp\/v2\/license?post=4377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}