Understanding Parabolas

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

Tags

CCSS.HSF-IF.C.7A

Which letter determines if a parabola opens up or down?

• a

• h

• k

Tags

CCSS.HSF-IF.C.7A

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?

• (4,-4)
• (2,0)
• (0,2)
• (6,0)

Tags

CCSS.HSF-IF.C.7A

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

• x = -4
• x = 4
• y = 4
• y = -4

Tags

CCSS.HSA.REI.B.4

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

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

• x=1
• x=-6
• x=2
• x=-1

Tags

CCSS.HSA.REI.B.4

Find the vertex of 
f(x) = -x² - 4x + 12.

• (-2, 16)
• (2, 0)
• (2, 4)
• (-2, 4)

Tags

CCSS.HSA.REI.B.4

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

The equation for the axis of symmetry line is x = -b/(2a)

• true

• false

Tags

CCSS.HSA.REI.B.4

What is the vertex of the function?

• (-3, -16)

• (3, 20)

• (-6, -7)

• (0, -7)

Tags

CCSS.HSA.REI.B.4

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7