Find the Inverse of the Function $$f ( x ) = \sqrt { x - 8 } , x \geq 8$$

question 61

Multiple Choice

Find the inverse of the function.
- $$f ( x ) = \sqrt { x - 8 } , x \geq 8$$

• A) \(f ^ { - 1 } ( x ) = x ^ { 2 } + 8 , x \geq 0\)
• B) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \mathrm { x } ^ { 2 } - 8 , x \geq 0\)
• C) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \mathrm { x } + 8 , \mathrm { x } \geq 0\)
• D) Not a one-to-one function

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