Solve the Problem $$f ( x ) = \sqrt { x + 5 }$$

Multiple Choice

Solve the problem.
- $$f ( x ) = \sqrt { x + 5 }$$

A) $\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \mathrm { x } ^ { 2 } - 5 , \mathrm { x } \geq 0$
B) $f ^ { - 1 } ( x ) = - x ^ { 2 } + 5 , x \geq 0$
C) $\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \sqrt { \mathrm { x } - 5 } , \mathrm { x } \geq 5$
D) $f ^ { - 1 } ( x ) = x ^ { 2 } - 25 , x \geq 0$