Chapter 5
Algebra 2 · 550 exercises
Problem 7
Solve each equation by finding square roots. $$ 5 x^{2}=80 $$
4 step solution
Problem 7
Factor each expression. $$ x^{2}+3 x+2 $$
3 step solution
Problem 7
Graph each function. Identify the axis of symmetry. $$ y=(x-5)^{2}-3 $$
5 step solution
Problem 7
Determine whether each function is linear or quadratic. Identify the quadratic, linear, and constant terms. $$ h(x)=(3 x)(2 x)+6 $$
3 step solution
Problem 7
Graph each function. $$ y=\frac{1}{2} x^{2}+3 $$
4 step solution
Problem 8
Solve each equation using the Quadratic Formula. $$ x^{2}+6 x-5=0 $$
6 step solution
Problem 8
Simplify each number by using the imaginary number \(i\) $$ 3 \sqrt{-9} $$
3 step solution
Problem 8
Solve each equation by finding square roots. $$ x^{2}-4=0 $$
3 step solution
Problem 8
Factor each expression. $$ x^{2}+5 x+6 $$
3 step solution
Problem 8
Graph each function. Identify the axis of symmetry. $$ y=(x+2)^{2}-3 $$
6 step solution
Problem 8
Determine whether each function is linear or quadratic. Identify the quadratic, linear, and constant terms. $$ y=x(1-x)-\left(1-x^{2}\right) $$
3 step solution
Problem 8
Graph each function. $$ y=\frac{1}{4} x^{2}-3 $$
5 step solution
Problem 9
Solve each equation using the Quadratic Formula. $$ 3 x^{2}-4 x-2=0 $$
6 step solution
Problem 9
Simplify each number by using the imaginary number \(i\) $$ -\sqrt{-100} $$
3 step solution
Problem 9
Solve each equation by finding square roots. $$ 2 x^{2}=32 $$
3 step solution
Problem 9
Factor each expression. $$ x^{2}+7 x+10 $$
3 step solution
Problem 9
Graph each function. Identify the axis of symmetry. $$ y=-(x-1)^{2}+4 $$
6 step solution
Problem 9
Determine whether each function is linear or quadratic. Identify the quadratic, linear, and constant terms. $$ f(x)=-x(2 x+8) $$
3 step solution
Problem 9
Graph each function. $$ y=-2 x^{2}+\frac{3}{4} $$
6 step solution
Problem 10
Solve each equation using the Quadratic Formula. $$ 8 x^{2}-2 x-3=0 $$
5 step solution
Problem 10
Simplify each number by using the imaginary number \(i\) $$ \sqrt{-72} $$
4 step solution
Problem 10
Solve each equation by finding square roots. $$ 9 x^{2}=25 $$
3 step solution
Problem 10
Factor each expression. $$ x^{2}+10 x+16 $$
5 step solution
Problem 10
Graph each function. Identify the axis of symmetry. $$ y=3(x+5)^{2}-8 $$
7 step solution
Problem 10
Graph each function. Label the vertex and the axis of symmetry. $$ y=x^{2}+2 x+1 $$
4 step solution
Problem 11
Solve each equation using the Quadratic Formula. $$ x(x-5)=-4 $$
5 step solution
Problem 11
Write each number in the form \(a+b i\) $$ 2+\sqrt{-3} $$
2 step solution
Problem 11
Solve each equation by finding square roots. $$ 3 x^{2}-15=0 $$
3 step solution
Problem 11
Factor each expression. $$ y^{2}+15 y+36 $$
5 step solution
Problem 11
Graph each function. Identify the axis of symmetry. $$ y=-(x-7)^{2}+10 $$
2 step solution
Problem 11
Graph each function. Label the vertex and the axis of symmetry. $$ y=-x^{2}+2 x+1 $$
6 step solution
Problem 12
Solve each equation using the Quadratic Formula. $$ 9 x^{2}+12 x-5=0 $$
6 step solution
Problem 12
Solve each equation by finding square roots. $$ 5 x^{2}-40=0 $$
3 step solution
Problem 12
Factor each expression. $$ x^{2}+22 x+40 $$
3 step solution
Problem 12
Graph each function. Identify the axis of symmetry. $$ y=-4(x+8)^{2}-6 $$
4 step solution
Problem 12
Graph each function. Label the vertex and the axis of symmetry. $$ y=x^{2}+4 x+1 $$
6 step solution
Problem 13
Solve each equation using the Quadratic Formula. $$ x^{2}-6 x+11=0 $$
6 step solution
Problem 13
Solve each quadratic equation by completing the square. $$ x^{2}-3 x=28 $$
8 step solution
Problem 13
Write each number in the form \(a+b i\) $$ 6-\sqrt{-28} $$
4 step solution
Problem 13
Solve each equation by factoring or by taking square roots. $$ x^{2}-4 x=0 $$
3 step solution
Problem 13
Graph each function. Label the vertex and the axis of symmetry. $$ y=x^{2}+6 x+9 $$
4 step solution
Problem 13
Factor each expression. $$ x^{2}-3 x+2 $$
3 step solution
Problem 14
Solve each equation using the Quadratic Formula. $$ x^{2}=2 x-5 $$
5 step solution
Problem 14
Solve each quadratic equation by completing the square. $$ x^{2}-3 x=4 $$
6 step solution
Problem 14
Write each number in the form \(a+b i\) $$ \sqrt{-4}+3 $$
3 step solution
Problem 14
Solve each equation by factoring or by taking square roots. $$ 6 x^{2}+4 x=0 $$
3 step solution
Problem 14
Factor each expression. $$ x^{2}-13 x+12 $$
5 step solution
Problem 14
Graph each function. Label the vertex and the axis of symmetry. $$ y=x^{2}+6 x+9 $$
5 step solution
Problem 15
Solve each equation using the Quadratic Formula. $$ x^{2}+3 x+5=0 $$
6 step solution
Problem 15
Solve each quadratic equation by completing the square. $$ x^{2}+6 x+41=0 $$
6 step solution