Review 3.1 to 3.3

Simplify.
(5-8i) - (2+9i)

• 3+i
• -14i
• 7-17i
• 3-17i

The expression (2 + 3i)² is equal to

• -5
• -5 + 12i
• 13
• 13 + 12i

i³⁸

• -i
• i
• -1
• 1

i^-13

• -1
• 1
• i
• -i

• A
• B
• C
• D

• A
• B
• C
• D

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.CN.A.3

What is the axis of symmetry  y=4x²+8x+8?

• x = -1
• x = 1
• x = 2
• x = -2

What is the
y-intercept of 
f(x)=-2x² + 4x - 6

• (0, 6)
• (0, -6)
• (6, 0)
• (-6, 0)

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

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

The height of an object thrown into the air can be modeled by the formula h(t) = -16t² + 70t + 95, where h(t) is in feet after t seconds.
What is the height of the object after 5 seconds?

• 95 feet
• 45 feet
• 70 feet
• 171.56 feet

Tags

CCSS.HSA.SSE.A.1

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2