Unit 4 Post Test Activity

No Calculator: Find the axis of symmetry and vertex.
 $y=-x^2+10x-28$  

• Axis of Symmetry: x = 10
  Vertex: (10, -28)

• Axis of Symmetry: x = 5
  Vertex: (5, -3)

• Axis of Symmetry: x = -5
  Vertex: (-5, -103)

• Axis of Symmetry: x = 5
  Vertex: (5, 47)

No Calculator: Solve by factoring
 $x^2-7x=44$  

• x=-11, x=4

• x=-7, x-44

• x=11, x=-4

• no solutions

Tags

CCSS.HSA-REI.B.4B

Solve Using the Quadratic Formula
 x² + 4x - 40 = -8

• -10 & -4
• -4 & 10
• -8 & 4
• 8 & -4

Tags

CCSS.HSA-REI.B.4B

Your nephew is standing on his deck, which is 4 feet off the ground. He tosses his toy up into the air. The equation

h = -2t² + 7t + 4 models the toy's height, h, from the ground at t seconds after he threw it. How high is the toy after 1 second?

• 2

• 4

• 9

• 10

• 15

Select all the potential factors of the given graph.

• (x+3)

• (x-3)

• (x-8)

• (x+8)

• x

Tags

CCSS.HSA.APR.B.3

Describe the Transformations of the Quadratic. (Choose all that apply!)

• Reflected over the x-axis

• Vertically Stretched

• Vertically Compressed

• Shifted 4 units Left

• Shifted 4 units Right

Simplify: 
(10+ 15i)-(48 - 30i)

• 58 - 45i
• 58 - 15i
• -38 - 15i
• -38 + 45i

Tags

CCSS.HSN.CN.A.2

i⁷⁹

• i
• 1
• -1
• -i

Tags

CCSS.HSN.CN.A.2

• A.
• B.
• C.
• D.

Tags

CCSS.HSN.CN.A.1

Tags

CCSS.HSN.CN.A.1