Quadratic Functions

Which of the following is a quadratic equation in standard form?

• 3x + 2y = 7

• y = -(x - 4)² + 8

• y = -2x² + 3x + 1

• y = 4x + 9

What is another name for zeros of a quadratic function?

• Vertex

• Axis of symmetry

• x-intercepts

• y-intercepts

In the quadratic equation 2x² – 9x – 5 = 0, which is the constant term?

• 2x²

• x²

• – 9x

• – 5

Label the key pieces of a quadratic graph.

d

e

c

b

Roots

Vertex

Zero

Y-intercept

Quadratic

Tags

CCSS.HSF-IF.C.7A

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum

• opens up with a minimum

• opens down with a maximum

• opens down with a minimum 

Tags

CCSS.HSF-IF.C.7A

• 1

• 3

• 2

• 5

Which of the following represents a quadratic function?

• 1

• 3

• 2

• 5

• 4