Test Review: Solving Quadratics (MHS 2022)

Solve:

(x + 2)² = 25

• x = 5 or -5

• x = 3 or -3

• x = 7 or -3

• x = -7 or 3

Solve for x.

5(x - 3)² + 1 = 81

• x = -1, 7

• x = -7, 1

• x = ± 9

• x = 3, 10

If the discriminant is equal to 0, how many solutions are there?

• No solutions

• 1 Solution

• 2 Solutions

• Infinite solutions

The discriminant is

• aX²  + bX  +  c
• b - 4ac
• b² - 4ac
• b² + 4ac

1 What does the discriminant tell us?

• The maximum or minimum

• The y-intercept

• The number and type of solutions

• The axis of symmetry

For the function below, is the discriminant positive, negative, or zero?

6x² − 2x − 3 = 0

• positive

• negative

• zero

• None of these

• (0, 0)

• (0, 9)

• (-9, 0)

• (9, 0)