The Function F Is One-To-One $$f ( x ) = 2 x + 8$$

Multiple Choice

The function f is one-to-one. Find its inverse.
- $$f ( x ) = 2 x + 8$$

A) $f ^ { - 1 } ( x ) = \frac { x + 8 } { 2 }$
B) $f ( x ) = \frac { x - 8 } { 2 }$
C) $f ^ { - 1 } ( x ) = - \frac { x + 2 } { 8 }$
D) $\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \frac { \mathrm { x } - 8 } { 2 }$