Radical Functions Domain

Identify the DOMAIN and RANGE

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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,∞) 

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Which is the graph of the given function

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y ≥ 0

• y ≥ 0

• x ≥ -2

• x ≤ -2

• y ≥ 2

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

• (-infinity, infinity)

• (-7, infinity)

• (0, infinity)

• (4, infinity)

Solve for x.

• x = 12

• x = 4

• x = 6

• no solution

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What is the parent function of square root functions?

• f(x) = x

• f(x) = √x

• f(x) = -√x

• f(x) = x²