Quadratics Review

A quadratic function has zeros -7 and 9.

What are the linear factors of the function?

• (x+7) (x-9)

• (x-7) (x+9)

• (x+7)(x+9)

• (x-7)(x-9)

Tags

CCSS.HSA.APR.B.3

What is the axis of symmetry for the following equation?

y=4x²-8x+9

• x = 5

• x=1

• y = 1

• y = 5

Tags

CCSS.HSA.REI.B.4

What is the vertex of the quadratic function: y=1/2(x-3)²+8?

• (3,8)
• (-3,-8)
• (-3,8)
• (3,-8)

What are the x-intercepts?

• 0 and 2
• -4 and 0
• 2 and 3
• 0 and 4

Tags

CCSS.HSF-IF.C.7A

Which of the following are other words for zeros? (Choose ALL that apply)

• x-intercepts

• roots

• vertex

• solutions

• y-intercepts

Tags

CCSS.HSF-IF.C.7C

What is the range of this function?

• All real numbers.
• All real numbers greater than or equal to 0.
• All real numbers greater than or equal to -2.
• All real numbers greater than or equal to 2.

Tags

CCSS.HSF.IF.B.5

CCSS.8.F.A.1

What is the domain of the function

f(x) = 4x - 2x²

• All real numbers.

• All real numbers less than or equal to 0.

• All real numbers less than or equal to -2.

• All real numbers less than or equal to 2.

Tags

CCSS.HSF.IF.B.5

What is the maximum value of the function shown?

• 4

• 3

• 1

• -3

Tags

CCSS.HSF-IF.C.7A

What are the solutions to the quadratic equation:

3(x - 2)² = 192

• x = -6 and x = 10

• x = 6 and x = -10

• x = ±10

• x = 2 ± 8√3

Tags

CCSS.HSA-REI.B.4B

A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function
 h = -16t² + 64t + 960.
When did the ball hit the ground?

• 10 seconds
• 2 seconds
• 5 seconds
• 7 seconds

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.D.11