Review Quadratics

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)

What is the axis of symmetry for the following equation?

y=4x²-8x+9

• x = 5

• x=1

• y = 1

• y = 5

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

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

• x-intercepts

• roots

• vertex

• solutions

• y-intercepts

Solve by factoring: x²-2x-35=0

• (-6,-8)
• (-7,5)
• (7,-5)
• (7,8)

Solve by factoring: x²-13x+40=0

• (1,2)
• (1,-5)
• (-8,-5)
• (8,5)

Identify the vertex from the graph.

• (-4,1)

• (1,-4)

• (4,-1)

• (-1,4)

Identify the axis of symmetry

• x=-1

• y=-4

• x=1

• y=4

Identify the zero(s) from the graph.

• (0,3) (0,-1)

• (-3,0) (1,0)

• (0,-3) (0,1)

• (-1,0) (3,0)