Find the Inverse of the Function $$f ( x ) = \sqrt { x + 9 }$$

question 368

Multiple Choice

Find the inverse of the function.
- $$f ( x ) = \sqrt { x + 9 }$$

• A) \(f ^ { - 1 } ( x ) = \sqrt { x - 9 }\)
• B) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \mathrm { x } ^ { 2 } - 9 , x \geq 0\)
• C) Not a one-to-one function
• D) \(f ^ { - 1 } ( x ) = ( x + 9 ) ^ { 2 }\)

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