Quadratic Function Properties Test Review

What is the sum of the following? (x² - x + 2) + (-2x² + 9x - 7)

• -x² + 8x - 5

• x² + 8x - 5

• -x² - 8x + 5

• x² - 8x + 5

Tags

CCSS.HSA.APR.A.1

Subtract: (5x² - x - 9) - (-9x² - 9x)

• 14x² + 8x - 9

• 14x² - 8x - 9

• -4x² + 8x + 9

• 4x² + 8x - 9

Tags

CCSS.HSA.APR.A.1

Simplify f(x) = (x + 2)(x - 4)

• x² - 2x - 8

• x² + 2x - 4

• x² - 2x + 8

• x² + 6x - 8

Tags

CCSS.HSA.APR.A.1

Simplify g(x) = (x + 5)(x² - 3x + 8)

• x³ + 2x² - 7x + 40

• x³ + 2x² - 7x + 8

• x³ - 2x² + 7x + 40

• x³ - 2x² + 7x + 8

Tags

CCSS.HSA.APR.A.1

What is the factored expression of 4x² - 9?

• (2x + 3)(2x - 3)

• (2x + 9)(2x - 1)

• (4x + 3)(x - 3)

• (2x + 9)(2x - 9)

Tags

CCSS.HSA.APR.C.4

What is the factored form of x² - 9x + 20?

• (x - 4)(x - 5)

• (x + 4)(x + 5)

• (x - 2)(x - 10)

• (x + 2)(x + 10)

What is the result when you add x² - x + 2 and -2x² + 9x - 7?

• -x² + 8x - 5

• x² + 8x + 5

• -x² - 8x + 5

• x² - 8x - 5

Tags

CCSS.HSA.APR.A.1

Which of the following is the correct factorization of 5x² - 21x + 4?

• (5x - 1)(x - 4)

• (5x + 1)(x + 4)

• (5x - 4)(x - 1)

• (5x + 4)(x + 1)

What is the domain of the function y = x² + 2x?

• All real numbers

• x > 0

• x < 0

• x ≠ 0

On which interval is the function y = x² + 2x positive?

• (-∞, -2)

• (-2, 0)

• (0, ∞)

• (0, 2)