10/2 Math 2 Quiz 6

Find the axis of symmetry for the function:

 $f(x)=2x^2-4x-6$  

• x = 1

• x = -1

• x = 4

• x = -4

How do you find the equation of the axis of symmetry?

• Use  $x=-\frac{b}{2}$ 

• Use  $x=\frac{b}{2}$ 

• Use  $x=\frac{b}{2a}$ 

• Use  $x=-\frac{b}{2a}$ 

Find the axis of symmetry for

 $f(x)=x^2-8x+15$  

• x = -4

• x = 4

• y = 4

• y = -4

Determine the Axis of Symmetry and Vertex of the equation:  $y=3x^2-12x+5$  

**Must choose more than one answer

• AOS: x = 2

• AOS: x = -2

• Vertex: (2,-7)

• Vertex: (2,17)

• Vertex: (-2,17)

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

• y = -2
• x = 3
• x = -3
• y = 2

Tags

CCSS.HSF.IF.C.7

Find the vertex of 

 $f(x)=-x^2-4x+12$  

• (-2, 16)

• (2, 0)

• (2, 4)

• (-2, 4)

Which equation has a vertex of (-3, 4)?

• $y=2(x+3)^2+4$

• $y=(x+3)^2-4$
  

• $y=(x-3)^2+4$
  

• $y=2(x-3)^2+4$
  

What is the vertex of this parabola?

• (−1, 3)
• (−3, 11)
• (−2, 5)
• (0, 5)

Tags

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSG.GPE.A.2

What is the y-intercept of the function?

 $y=x^2+3x-2$  

• 1
  

• 3
  

• -2

• -1

What is the y-intercept of the equation  $y=-x^2\ +3x-4$  

• 3

• -1

• -4

• 4

• -3