Characteristic of Parabolas

Label the parts of this parabola

b

c

d

e

a

Vertex

Axis of Symmetry

Y-intercept

X-intercept

X-intercept

If a > 0, then the parabola will open ​ (a)   If a < 0, then the parabola will open ​ (b)  

• up

• down

• sideways

The axis of symmetry is a line that goes through the...

• y-intercept

• any random point

• vertex

•  x-axis or y-axis

What is the axis of symmetry?

• x=-1

• x=-2

• y=-1

• y=-2

Identify the axis of symmetry. 

• x=-1

• y=-1

• x=4

• y=4

• up

• down

• right

• left

• maximum

• minimum

• up

• down

• right

• left

In standard form, which value determines if the parabola opens up or down?

• a

• b

• x

• c

If the vertex of a parabola is (3,5), what is the axis of symmetry? 

• y=5

• x=5

• x=3

• There is not enough information provided.