Math 3H Unit 3 Test Review

What are the local maxima of this graph?

• local maximum at (2.2, 3.9)
• local maximum at (-8, 5)
• local maximum at (5, -8)⋃(3.9, 2.2)
• local maximum at (-8, 5)⋃(2.2, 3.9)

Tags

CCSS.HSF.IF.B.4

When is this function increasing?

• (-2.5, 2.5)

• (0, 5)

• (0, 55)

• (-5, 0)

Over what interval is this function constant?

• (-5, ∞)

• (−3, 4)

• (4 , ∞)

• −5

Where is the decreasing?

• ( −∞, −2.55) U (0, 2.55)
• (∞, −6.25) U (36, −6.25)
• (−∞, ∞)
• (−∞, 0)

How many real zeros does the function have?

• 1

• 2

• 3

• 4

Which of the following is a COMPLETE  list of all possible Rational Zeros?
f(x) = 2x³ + 5x² - 9x + 5

• ±1, 5, 1/2, 5/2
• ±1, 2, 5, 1/2, 5/2
• ±1, 5
• ±1, 2, 5, 1/2, 5/2, 2/5

Tags

CCSS.HSA.APR.B.2

Describe the end behavior of the graph.

• x → ∞, y→ ∞ and x→∞, y→⁻∞
• x → ∞, y→ ∞ and x→⁻∞, y→∞
• x → ∞, y→ ∞ and x→⁻∞, y→ 0
• x → ∞,y→ ∞and x→ ⁻∞, y→ ⁻∞

Tags

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

The end behavior of a polynomial function is determined by the degree and the sign of the leading coefficient.
Identify the degree of the polynomial and the sign of the leading coefficient 

• Leading Coefficient Positive
  Degree - Even
• Leading Coefficient Positive
  Degree - Odd
• Leading Coefficient Negative
  Degree - Even
• Leading Coefficient Negative
  Degree - Odd

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

If f(x) = 3x² -9x -20, find the value of f(5) using synthetic substitution.

• 0

• 10

• 15

• -7

Tags

CCSS.HSF.IF.A.2

Find: (2x³ - 5x² + 3x + 7) ÷ (x - 2)

• 2x³ - x² + x + 9

• 2x² - x + 1

• 2x² - x + 1 + 9/(x-2)

• 2x² - 9x - 15 - 23/(x-2)