Vertex and axis of symmetry

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

Tags

CCSS.HSF-IF.C.7A

What is the axis of symmetry?

• the slope of the graph
• the dividing line for a parabola
• a way to spin my pencil
• the x-axis

A parabola has a vertex at (2,-3).

Where is the axis of symmetry?

• y = -2

• y = 3

• x = -3

• x = 2

What is the vertex?

• (4,-4)
• (2,0)
• (0,2)
• (6,0)

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

• x = -4
• x = 4
• y = 4
• y = -4