Review: Key Features of Quadratic Functions

Label the key features of the quadratic

e

f

d

vertex

domain

line of symmetry

x-intercept

range

y-intercept

Drag the functions into the correct column: does the parabola open upward or downward?

Groups:

(a) Upward

,

(b) Downward

• The ball is launched from 20 feet

• vertex

• Reaches a max of 164 feet in 3 seconds.

• y-intercept

• The ball hits the ground in 6.2 seconds.

• x-intercept

Match the following term with the best definition.

• The highest or lowest point

• Axis of symmetry equation

• The line of reflection of a quadratic function

• parabola

• Quadratic Function Equation

• The shape of a quadratic function

• axis of symmetry

• vertex

Use the picture to find  the vertex and axis of symmetry

•  Vertex (3,8) Axis x=3

• Vertex (3,8) Axis y=3

• Vertex (8,3) Axis x=3

• Vertex (8,3) Axis y=3

What is the significance of the ordered pair (0, -2) to the graph?

• It is the vertex

• It is an x-intercept

• It is the y-intercept

• It is the axis of symmetry

When did the ball reach its maximum height? Choose the key feature and the answer.

• y-intercept, 3 secs

• x-value of the vertex, 4 secs

• y-value of the vertex, 5 secs

• y-intercept, 0 secs

Use the graph to determine the X-intercepts

• (-1,0) and (-3,0)

• (1,0) and (3,0)

• (0,1) and (0,3)

• (0,-1) and (0,-3)

What is the equation for axis of symmetry?

• y=3

• x=3

• x=5

• x=1