Unit 10 Test Review Practice

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

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→ -∞

Identify the zeros:

• x= 2, x= 6, x= -4

• x= 3, x= -3

• (x-2)(x-6)(x+4)
• x= -2, x= -6, x= 4

Decreasing Interval(s): (Choose all that apply)

Which function is graphed?

• (x - 4)(x + 2)(x - 8)=0
• (x - 4)(x - 2)(x + 8)=0
• (x - 4)(x + 2)(x + 8)=0
• (x + 4)(x + 2)(x + 8)=0

• Even Function

• Odd Function

• Function - neither even nor odd

• Not a function

(3x³ + 5x - 1) ÷ (x + 1)

• 3x³ - 3x² + 8x - 9
• 3x² - 3x + 8 - 9/x+1
• 3x² + 3x + 8 + 7/x+1
• 3x³ + 3x² + 8x + 7

Evaluate the function f(x) = 3x² -9x -20 at x=5

• 0
• 10
• 15
• -7

Decide if (x-3) is a factor of 3x³+10x²-x-12?

• Yes, it is a factor because the remainder is 0!

• No, it is not a factor because the remainder is not 0!

• Yes, it is a factor because the remainder is not 0!

• No, it is not a factor because the remainder is 0!