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

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