Characteristics of Functions

Determine the interval in which this function is DECREASING.

• (-3, ∞)

• (-3, ∞)

• (-∞, -4)

• (-∞, -3)

Identify the increasing interval:

• (0, 4)

• (1, 0) U (1, 4)

• (-1, 1)

• (-∞, -1) U (1, ∞)

Identify the decreasing interval:

• (0, 4)

• (1, 0) U (1, 4)

• (-1, 1)

• (-∞, -1) U (1, ∞)

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)

• (3,4) (4,-3) (7,4) (3, 8)

• (6,-5) (7, -3) (8, -1) (9, 1)

• (2, -2) (5, 9) (5, -7) (1, 4)

Describe the following graph.

• Increasing

• Decreasing

• Vertical

• Horizontal

Is it a function?

• It IS a function.

• It IS NOT a function

What is the y-intercept?

• (0,7)

• (0, 0)

• (0,1)

• (0, 2)

What are all the x-intercepts?

• (-2.55, 0), (2.55, 0)

• (-3,0), (-2,0), (2,0), (3,0)

• (0, 36)

• (-∞,∞)

All of the x values or inputs are called what?

• Domain

• Range

• Relation

• Function

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