For the Given Function F(x), Find F-1(x) $$f ( x ) = 5 x + 7$$

Multiple Choice

For the given function f(x) , find f-1(x) .
- $$f ( x ) = 5 x + 7$$

A) Not a one-to-one function
B) $\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \frac { \mathrm { x } + 7 } { 5 }$
C) $f ^ { - 1 } ( x ) = \frac { x } { 5 } - 7$
D) $f ^ { - 1 } ( x ) = \frac { x - 7 } { 5 }$