Review for Unit 4C assessment

• True 

• False

• 4

• -1

• -2

• 3

2. 2.Choose the polynomial function with a degree of 6 for the graph:

Answer explanation

Answer explanation

4.  Determine the range of the polynomial function graphed on the left:

• [-5, ∞)

• [-4,3)

• (-∞, ∞ )

• [-10, ∞)

Answer explanation

The range is the y-values. When starting from the bottom to the top of the graph, the function starts at 10 (on the y axis) and goes up to ∞.

5. 5a. Find the domain and range for the graph to the left.

• Domain: (-∞, ∞)

  Range: (-∞, ∞)

• Domain: (-∞, ∞)

  Range: [-2, ∞)

• Domain: [-1.5, 2.5 ]

  Range: (-∞, ∞)

• Domain: (-∞, ∞)

  Range: (∞,- ∞)

5b. Find the y-intercept for the graph to the left.

• (0,0)

• (0,2)

• (2,0)

• (0,-2)

Answer explanation

Where does the function cross the y-axis?

When x=0, y=2

5c. ​ Fill blank boxes with the right answer.

This graph has a maximum at ​ (a)   and a minimum at ​ (b)  

• (0,2)
• (2,-2)
• (2,0)
• (-2,2)

6. 6.Which of the following is true about the graph? (There are multiple answers.)

• • There is a maximum at (0,-3)

• • There is a minimum at (5,-128)

• • There is a maximum at (1,0)

• • There is a minimum at (0,-3)

• There is no minimum or maximum

7. Find the intervals of increase and decrease: The intervals of increase are​ (a)   and​ (b)  

The interval of decrease is ​ (c)  

• (-∞,0)
• (3.5,∞)
• (0,3.5)
• (3.5,-17)
• (-3.5,0)