Determine the Values of X for Which F(x) and G(x) $$f ( x ) = - x ^ { 2 } + 16 , g ( x ) = \sqrt { 16 - x }$$

Multiple Choice

Determine the values of x for which f(x) and g(x) are inverse functions.
- $$f ( x ) = - x ^ { 2 } + 16 , g ( x ) = \sqrt { 16 - x }$$

A) $x \leq 16$
B) $x \geq 16$
C) $x \leq 0$
D) $x \geq 0$