Grade 9 Chapter 1

When factoring

x² - 4x + 4 = 20,

what goes in the blank?

(x - __ )² = 20

• 2

• 4

• 6

• 8

What is one of the solutions to this equation?

(2x - 1)² = 49

• 7

• -7

• -4

• -3

Complete the Square

x² + 6x = 5

• (x + 3)² = 5

• (x + 6)² = 9

• (x + 3)² = 14

• (x + 6)² = 14

Determine the values of

a, b, and c for

the quadratic equation:

4x² – 8x = 3

• a = 4, b = -8, c = 3

• a = 4, b =-8, c =-3

• a = 4, b = 8, c = 3

• a = 4, b = 8, c = -3

Solve 2x² + 7x - 15 = 0

• -1.5 or 5

• No Solution

• -5 or 1.5

• 0.7 or 5

8x² - 6x + 1 = 0

• No Solution

• 0 or 1

• -0.5 or -0.25

• 0.25 or 0.5

The quadratic equation can be used to solve quadratic equations that cannot be factored.

• True

• False

What are the x-intercept(s) of this graph?

• -1 and -3

• -1 and 3

• 1 and 3

• 1 and -3

What are the coordinates of the y-intercept?

• (-3, 0)

• (0, -3)

• (2, 1)

What is the significance of the ordered pair (2, -4) to the graph?

• it is the vertex

• it is the y-intercept

• it is the axis of symmetry

• it is the x-intercept