Vertex/Axis of Symmetry

Find the axis of symmetry for
f(x) = x²- 8x + 15.

• x = -4
• x = 4
• y = 4
• y = -4

What's the axis of symmetry of y = 3x² - 6x + 4

• x=1
• x=-6
• x=2
• x=-1

Find the vertex of 
f(x) = -x² - 4x + 12.

• (-2, 16)
• (2, 0)
• (2, 4)
• (-2, 4)

A parabola has a vertex at (-3, 2).
Where is the axis of symmetry?

• y = -2
• x = 3
• x = -3
• y = 2

What is does the vertex point represent?

• the slope of the graph
• the dividing line for a parabola
• the max or min. point of the quadratic equation

• the x-axis

Using the Axis of Symmetry formula, find the coordinates of the vertex.

y = -x² + 4x - 6

• (2, -2)
• (-2, 2)
• (0, 2)
• (0, -2)

The line that goes through the vertex of a parabola is called the...

• Vertex
• Axis of Symmetry
• x-intercept
• y-intercept

What is the green dashed line called?

• parabola

• roots or x-intercepts

• axis of symmetry

• line of dashes

Tags

CCSS.HSF-IF.C.7A

A parabola has a vertex at (4, 9).

Where is the axis of symmetry?

• y = 4

• x = 4

• y = 9

• x = -4