Axis of Symmetry Practice

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

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

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

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

• x=1
• x=-6
• x=2
• x=-1

The equation for the axis of symmetry line is 

 $x=\frac{-b}{2a}$  

• true

• false

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

What is the vertex?

• (4,-4)
• (2,0)
• (0,2)
• (6,0)

What is the green dashed line called?

• roots or x-intercepts
• parabola
• axis of symmetry
• line of dashes

What is the "formula" for finding the axis of symmetry? 

•  $y=ax^2+bx+c$  

•  $x=\frac{-b}{2a}$  

•  $y=mx+b$  

•  $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$