Domain and Range of Radical Functions

Find the domain and range of the function

Hint: Use a sketch 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 graph of the radical function?

• (-∞, ∞)

• [-7, ∞)

• [0, ∞)

• [4, ∞)

Identify the Range

• (- ∞, -2 ]

• [ -2, ∞ )

• All Real Numbers

• [ 0, ∞)

• A
• B
• C
• D

• A
• B
• C
• D

y ≥ 0

• y ≥ 0

• x ≥ -2

• x ≤ -2

• y ≥ 2

Find the domain of h(x):

• (- ∞, ∞)

• [2, ∞)

• (-∞, -2]

• [-2, ∞)

Identify the DOMAIN and RANGE

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• 
• 
• 

The domain of the function is ​ (a)   and the range is ​ (b)