Intro to key features of a quadratic

Label the key features of this graph

a

c

Solution

axis of symmetry

Vertex

Y-intercept

Label the key features of this graph

d

e

Y-intercept

zero

axis of symmetry

X-intercept

Vertex

Label the key features of this graph

d

b

zero

axis of symmetry

Vertex

X-intercept

What is the vertex?

• (-3, 0)

• (3, 0)

• (0, 18)

• (18, 0)

What is the equation of the axis of symmetry?

• y = 0

• x = 0

• x = 3

• x = -3

What are the zeros of the function? Choose all that apply.

• x = 0

• x = -3

• x = -6

• y = 18

Which statement about the graph is FALSE?

• The vertex is (-3, 18)

• The vertex is a maximum

• The y-intercept is y = 0

• The axis of symmetry is y = -3

What is the significance of the ordered pair (1, -2) to the graph?

• It is the maximum point

• It is the vertex

• It is the y-intercept

• It is an x-intercept

What is the significance of the ordered pair (3, 0) to the graph?

• It is the maximum point

• It is the vertex

• It is the y-intercept

• It is an x-intercept

What is the significance of the ordered pair (0, -1.5) to the graph?

• It is the maximum point

• It is the vertex

• It is the y-intercept

• It is an x-intercept