Features of Radical Functions

What type of function is shown?

• cube root

• radical (square root)

• logarithm

• exponential

What is the starting point of the graph of the radical function?

• (0,2)

• (2,0)

• (1,-1)

• (2,-2)

What is the domain of the graph of the radical function?

What is the range of the graph of the radical function?

Compare the two functions below. Which function has a greater y-intercept?

• Neither function

• Cannot be determined from the graph alone.

Identify the Range

• (- ∞, -2 ]

• [ -2, ∞ )

• All Real Numbers

• [ 0, ∞)

Find the domain and range of the function
Hint:  Use a scratch graph to help you visualize things. 

• Domain: (-∞, ∞)  Range: [-∞, 4]

• Domain: [1, ∞)  Range: (-∞, 4]

• Domain: [-1. ∞) Range: [4, ∞) 

• Domain: [4, ∞) Range: [-1,∞) 

What is the domain of the function in this graph?

• (-infinity, 3]

• [3, inifinity)

• (-infinity, 0]

• [0, infinity)

Identify the domain.

Identify the range.