Mixed Quadratics Review

Identify the domain and range of the function.

• Domain: -6 ≤ x ≤ 2
  Range: -3 ≤ y ≤ 5

• Domain: All real number
  Range: -3 ≤ y ≤ 5

• Domain: All real numbers
  Range: y ≥ -3

• Domain: All real number
  Range: y ≤ -3

What is the range for the function below? 

• y ≤ 4

• y ≥ 4

• All real numbers

• -3 ≤ y ≤ 1

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

• (3x - 8)(x + 3)

• 3(x - 2)(x + 4)

• (3x + 4)(x - 6)

• 3(x + 2)(x - 4)

The pattern in the image models a quadratic relationship. Write an equation to show the relationship between the stage number, x, and the number of squares.

The pattern in the image models a quadratic relationship. How many squares will there be at stage 4?

• 36

• 49

• 48

• 52

What is the axis of symmetry of y=2x²-4x+9?

• x=1

• x=-2

• x=-1

• x=4

Factor:

x² + 11x + 24

• (x + 6)(x + 4)

• (x + 12)(x + 2)

• (x - 8)(x - 3)

• (x + 8)(x + 3)

Solve:
x² - 49 = 0

• x = -7, x = 7

• x = -7

• x = 7

• x = -7, x = 1

Tags

CCSS.8.EE.A.2

2x² + 5x ≥ 12

• [-4, 1.5]

• (−∞, -4) U (1.5, ∞)

• (−∞, -4] U [1.5, ∞)

• no solution

6x² - 54 ≤ 0

• -3 ≤ x ≤ 3

• x ≤ -3 or x ≥ 3

• -3 < x < 3

• x < -3 or x > 3