Find the Domain of the Composite Function F G $$f ( x ) = \sqrt { x } ; g ( x ) = 5 x + 20$$

question 192

Multiple Choice

Find the domain of the composite function f g. Write the domain in interval notation.
- $$f ( x ) = \sqrt { x } ; g ( x ) = 5 x + 20$$

• A) \([ - 4 , \infty )\)
• B) \(( - \infty , - 4 ] \cup [ 0 , \infty )\)
• C) \([ 0 , \infty )\)
• D) \(( - \infty , \infty )\)

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