Quiz: Quadratic Functions

What is the vertex form for a vertex of (-3,-5) and when a=-2?

• y = -2(x-3)²+5
• y = -2(x+3)²+5
• y = -2(x+3)²-5

What is the axis of symmetry of the given function?

• y = 1
• y = -1
• x = 1
• x = -1

Identify the vertex and whether the graph opens up or down.

• (-1, 4); opens up
• (-1, 4); opens down
• (1, 4); opens up
• (1, 4); opens down

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

• y = -2
• x = 3
• x = -3
• y = 2

What is the vertex of y=x²+4x+3?

• (2,1)
• (-2,1)
• (0,0)
• (-2,-1)

Write the equation of the quadratic in vertex form given the following:
vertex: (4, -2)
point: (0,-6)
opens down

• f(x)=(x-4)²-2
• f(x)=-4(x-4)²-2
• f(x)=1/4(x+4)²-2
• f(x)=-1/4(x-4)²-2

This is the standard form of a quadratic function:

f ( x ) = ax² + bx + c

• True

• False

Identify a: f ( x ) = 3x² + 4x - 5

• 3

• 4

• 5

• -5

Tags

CCSS.HSF.BF.B.3

Identify b: f ( x ) = 3x² + 4x - 5

• 3

• 4

• 5

• -5

Identify c: f ( x ) = 3x² + 4x - 5

• 3

• 4

• 5

• -5