Algebra 1

An equation has solutions of m = -5 and m = 9. Which could be the equation?

(m + 5)(m - 9) = 0

Which are the roots of the quadratic function f(b) = b2 - 75? Check all that apply.

1 and 2

Which are the roots of the quadratic function f(q) = q2 - 125? Check all that apply.

1 and 2

Which equation is true for x = -6 and x = 2?

2x2 + 8x - 24 = 0

The roots of the function f(x) = x2 - 2x - 3 are shown. What is the missing number?

3

What are the solutions of 3x2 + 14x + 16 = 0?

A.

What is the first step in solving the quadratic equation x2 = ?

Take the square root of both sides of the equation.

The only solution of the equation x2 + bx + 16 = 0 is x = 4. What is the value of b?

b = -8

Which function has zeros at x = 10 and x = 2?

f(x) = x2 - 12x + 20

Theo started to solve the quadratic equation (x + 2)2 - 9 = -5. He added 9 to both sides and the resulting equation was (x + 2)2 = 4. Next, he took the square root of each side. Which was the resulting equation of that step?

x + 2 = ±2

What are the solutions to x2 + 8x + 7 = 0?

x = -7 and x = -1

What are the solutions of the quadratic equation (x + 3)2 = 49?

x = 4 and x = -10

What are the solutions to the quadratic equation x2 - 16 = 0?

x = 4 and x = -4

What are the solution(s) to the quadratic equation x2 - 25 = 0?

x = 5 and x = -5

What are the solutions to the quadratic equation 3(x − 4)2 = 75?

x = −1 and x = 9

Which equations are true for x = -2 and x = 2? Check all that apply.

x2 - 4 = 0 4x2 = 16