Algebra Test Quadratic Equations 2

Question 1

What is the solution to x² = 16?

Accepted Answer

x = ±4

Answer

x = 4 only

Answer

x = -4 only

Answer

x = ±8

Question 2

Which correctly factors 3x² + 9x?

Accepted Answer

3x(x + 3)

Answer

3(x² + 9x)

Answer

x(3x + 9)

Answer

3x(3x + 3)

Question 3

For the parabola y = -2x² + 4x - 1, which direction does it open?

Accepted Answer

Downward

Answer

Upward

Answer

Left

Answer

Right

Question 4

What is the solution set of x² + 4x + 4 = 0?

Accepted Answer

x = -2

Answer

x = 2 and x = -2

Answer

x = 2

Answer

x = 4

Question 5

Using the quadratic formula, solve x² - 2x - 3 = 0.

Accepted Answer

x = 3 and x = -1

Answer

x = -3 and x = 1

Answer

x = 1 and x = -2

Answer

x = 2 and x = -1

Question 6

What is the vertex of y = (x - 3)² + 5?

Accepted Answer

(3, 5)

Answer

(-3, 5)

Answer

(3, -5)

Answer

(-3, -5)