Chapter 9
Algebra for College Students · 248 exercises
Problem 9
For Problems \(1-22\), graph each of the polynomial functions. $$ f(x)=(x+1)^{4}+3 $$
5 step solution
Problem 9
For Problems \(1-20\), use the rational root theorem and the factor theorem to help solve each equation. Be sure that the number of solutions for each equation agrees with Property \(9.3\), taking into account multiplicity of solutions. $$ x^{3}-4 x^{2}+8=0 $$
6 step solution
Problem 9
For Problems 1-10, find \(f(c)\) by (a) evaluating \(f(c)\) directly, and (b) using synthetic division and the remainder theorem. $$ f(n)=2 n^{5}-1 \text { and } c=-2 $$
4 step solution
Problem 9
Use synthetic division to determine the quotient and remainder for each problem. $$ \left(x^{3}+2 x^{2}-7 x+4\right) \div(x-1) $$
4 step solution
Problem 10
For Problems \(1-20\), graph each rational function. Check first for symmetry, and identify the asymptotes. $$ f(x)=\frac{1}{x^{3}+x^{2}-6 x} $$
5 step solution
Problem 10
Graph each of the following rational functions: $$ f(x)=\frac{-3 x}{x+2} $$
4 step solution
Problem 10
For Problems \(1-22\), graph each of the polynomial functions. $$ f(x)=-x^{5} $$
4 step solution
Problem 10
For Problems \(1-20\), use the rational root theorem and the factor theorem to help solve each equation. Be sure that the number of solutions for each equation agrees with Property \(9.3\), taking into account multiplicity of solutions. $$ x^{3}-10 x-12=0 $$
5 step solution
Problem 10
For Problems 1-10, find \(f(c)\) by (a) evaluating \(f(c)\) directly, and (b) using synthetic division and the remainder theorem. $$ f(n)=3 n^{4}-2 n^{3}+4 n-1 \text { and } c=3 $$
4 step solution
Problem 10
Use synthetic division to determine the quotient and remainder for each problem. $$ \left(2 x^{3}-7 x^{2}+2 x+3\right) \div(x-3) $$
6 step solution
Problem 11
For Problems \(1-20\), graph each rational function. Check first for symmetry, and identify the asymptotes. $$ f(x)=\frac{x}{x^{2}+2} $$
4 step solution
Problem 11
Graph each of the following rational functions: $$ f(x)=\frac{-2}{x^{2}-4} $$
4 step solution
Problem 11
For Problems \(1-22\), graph each of the polynomial functions. $$ f(x)=(x-2)(x+1)(x+3) $$
4 step solution
Problem 11
For Problems \(1-20\), use the rational root theorem and the factor theorem to help solve each equation. Be sure that the number of solutions for each equation agrees with Property \(9.3\), taking into account multiplicity of solutions. $$ x^{4}+4 x^{3}-x^{2}-16 x-12=0 $$
7 step solution
Problem 11
For Problems \(11-20\), find \(f(c)\) either by using synthetic division and the remainder theorem or by evaluating \(f(c)\) directly. $$ f(x)=6 x^{5}-3 x^{3}+2 \text { and } c=-1 $$
5 step solution
Problem 11
Use synthetic division to determine the quotient and remainder for each problem. $$ \left(3 x^{3}+8 x^{2}-8\right) \div(x+2) $$
6 step solution
Problem 12
For Problems \(1-20\), graph each rational function. Check first for symmetry, and identify the asymptotes. $$ f(x)=\frac{6 x}{x^{2}+1} $$
4 step solution
Problem 12
Graph each of the following rational functions: $$ f(x)=\frac{1}{x^{2}-1} $$
5 step solution
Problem 12
For Problems \(1-22\), graph each of the polynomial functions. $$ f(x)=(x-1)(x+1)(x-3) $$
5 step solution
Problem 12
For Problems \(1-20\), use the rational root theorem and the factor theorem to help solve each equation. Be sure that the number of solutions for each equation agrees with Property \(9.3\), taking into account multiplicity of solutions. $$ x^{4}-4 x^{3}-7 x^{2}+34 x-24=0 $$
5 step solution
Problem 12
For Problems \(11-20\), find \(f(c)\) either by using synthetic division and the remainder theorem or by evaluating \(f(c)\) directly. $$ f(x)=-4 x^{4}+x^{3}-2 x^{2}-5 \text { and } c=2 $$
5 step solution
Problem 13
For Problems \(1-20\), graph each rational function. Check first for symmetry, and identify the asymptotes. $$ f(x)=\frac{-4 x}{x^{2}+1} $$
4 step solution
Problem 13
Graph each of the following rational functions: $$ f(x)=\frac{3}{(x+2)(x-4)} $$
5 step solution
Problem 13
For Problems \(1-22\), graph each of the polynomial functions. $$ f(x)=x(x+2)(2-x) $$
5 step solution
Problem 13
For Problems \(1-20\), use the rational root theorem and the factor theorem to help solve each equation. Be sure that the number of solutions for each equation agrees with Property \(9.3\), taking into account multiplicity of solutions. $$ x^{4}+x^{3}-3 x^{2}-17 x-30=0 $$
8 step solution
Problem 13
For Problems \(11-20\), find \(f(c)\) either by using synthetic division and the remainder theorem or by evaluating \(f(c)\) directly. $$ f(x)=2 x^{4}-15 x^{3}-9 x^{2}-2 x-3 \text { and } c=8 $$
5 step solution
Problem 13
Use synthetic division to determine the quotient and remainder for each problem. $$ \left(5 x^{3}-9 x^{2}-3 x-2\right) \div(x-2) $$
6 step solution
Problem 14
For Problems \(1-20\), graph each rational function. Check first for symmetry, and identify the asymptotes. $$ f(x)=\frac{-5 x}{x^{2}+2} $$
5 step solution
Problem 14
Graph each of the following rational functions: $$ f(x)=\frac{-2}{(x+1)(x-2)} $$
5 step solution
Problem 14
For Problems \(1-22\), graph each of the polynomial functions. $$ f(x)=(x+4)(x+1)(1-x) $$
5 step solution
Problem 14
For Problems \(1-20\), use the rational root theorem and the factor theorem to help solve each equation. Be sure that the number of solutions for each equation agrees with Property \(9.3\), taking into account multiplicity of solutions. $$ x^{4}-3 x^{3}+2 x^{2}+2 x-4=0 $$
6 step solution
Problem 14
For Problems \(11-20\), find \(f(c)\) either by using synthetic division and the remainder theorem or by evaluating \(f(c)\) directly. $$ f(x)=x^{4}-8 x^{3}+9 x^{2}-15 x+2 \text { and } c=7 $$
8 step solution
Problem 14
Use synthetic division to determine the quotient and remainder for each problem. $$ \left(x^{3}-6 x^{2}+5 x+14\right) \div(x-4) $$
4 step solution
Problem 15
For Problems \(1-20\), graph each rational function. Check first for symmetry, and identify the asymptotes. $$ f(x)=\frac{x^{2}+2}{x-1} $$
5 step solution
Problem 15
Graph each of the following rational functions: $$ f(x)=\frac{-1}{x^{2}+x-6} $$
5 step solution
Problem 15
For Problems \(1-22\), graph each of the polynomial functions. $$ f(x)=-x^{2}(x-1)(x+1) $$
5 step solution
Problem 15
For Problems \(1-20\), use the rational root theorem and the factor theorem to help solve each equation. Be sure that the number of solutions for each equation agrees with Property \(9.3\), taking into account multiplicity of solutions. $$ x^{3}-x^{2}+x-1=0 $$
5 step solution
Problem 15
For Problems \(11-20\), find \(f(c)\) either by using synthetic division and the remainder theorem or by evaluating \(f(c)\) directly. $$ f(n)=4 n^{7}+3 \text { and } c=3 $$
6 step solution
Problem 15
Use synthetic division to determine the quotient and remainder for each problem. $$ \left(x^{3}+6 x^{2}-8 x+1\right) \div(x+7) $$
7 step solution
Problem 16
For Problems \(1-20\), graph each rational function. Check first for symmetry, and identify the asymptotes. $$ f(x)=\frac{x^{2}-3}{x+1} $$
5 step solution
Problem 16
Graph each of the following rational functions: $$ f(x)=\frac{2}{x^{2}+x-2} $$
5 step solution
Problem 16
For Problems \(1-22\), graph each of the polynomial functions. $$ f(x)=-x(x+3)(x-2) $$
5 step solution
Problem 16
For Problems \(1-20\), use the rational root theorem and the factor theorem to help solve each equation. Be sure that the number of solutions for each equation agrees with Property \(9.3\), taking into account multiplicity of solutions. $$ 6 x^{4}-13 x^{3}-19 x^{2}+12 x=0 $$
6 step solution
Problem 16
For Problems \(11-20\), find \(f(c)\) either by using synthetic division and the remainder theorem or by evaluating \(f(c)\) directly. $$ f(n)=-3 n^{6}-2 \text { and } c=-3 $$
6 step solution
Problem 16
Use synthetic division to determine the quotient and remainder for each problem. $$ \left(2 x^{3}+11 x^{2}-5 x+1\right) \div(x+6) $$
6 step solution
Problem 17
Graph each of the following rational functions: $$ f(x)=\frac{2 x-1}{x} $$
6 step solution
Problem 17
For Problems \(1-22\), graph each of the polynomial functions. $$ f(x)=(2 x-1)(x-2)(x-3) $$
5 step solution
Problem 17
For Problems \(1-20\), use the rational root theorem and the factor theorem to help solve each equation. Be sure that the number of solutions for each equation agrees with Property \(9.3\), taking into account multiplicity of solutions. $$ 2 x^{4}+3 x^{3}-11 x^{2}-9 x+15=0 $$
6 step solution
Problem 17
For Problems \(11-20\), find \(f(c)\) either by using synthetic division and the remainder theorem or by evaluating \(f(c)\) directly. $$ f(n)=3 n^{5}+17 n^{4}-4 n^{3}+10 n^{2}-15 n+13 \text { and } c=-6 $$
4 step solution
Problem 17
Use synthetic division to determine the quotient and remainder for each problem. $$ \left(-x^{3}+7 x^{2}-14 x+6\right) \div(x-3) $$
4 step solution