Understanding Quadratic Functions

Identify the vertex of the following parabola.

y = x² − 4x + 1

• (2,-3)

• (1/3, 4)

• (-2, 3)

• (-2,13)

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.D.10

Without graphing state whether the following quadratic function opens upward or downward?

y = -3x² + 2x - 4

• Upward

• Downward

Tags

CCSS.HSF-IF.C.7A

What is the formula to find the axis of symmetry of a parabola?

Tags

CCSS.HSA.CED.A.1

What are the zeros of the parabola? 

• 1, 5
• 3, -5 
• 3, 0
• -6, 1

Tags

CCSS.HSA.APR.B.3

The graph of a quadratic function is called a

• Parabola
• Vertex
• Axis of Symmetry 
• Vertex Form

Tags

CCSS.HSF-IF.C.7A

What divides the parabola into 2 perfect halves?

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

Tags

CCSS.HSF-IF.C.7A

What do we call the highest or lowest point of a quadratic?

• parabola
• vertex
• graph
• point

What is another name for the x-intercepts of a quadratic?

• y-intercept
• Zeros
• x-axis
• They don't have another name

Tags

CCSS.HSF-IF.C.7C

Factor:

x² + 11x + 24

• (x + 6)(x + 4)

• (x + 12)(x + 2)

• (x - 8)(x - 3)

• (x + 8)(x + 3)

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor:
 4x²-16x-9

• (2x-9)(2x+1)
• (2x+9)(2x-1)
• (4x-1)(x+9)
• (x+1)(4x-9)

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3