If the Function Is One-To-One, Find Its Inverse $$f ( x ) = - 8 x + 1$$

Multiple Choice

If the function is one-to-one, find its inverse. If not, write "not one-to-one."
- $$f ( x ) = - 8 x + 1$$

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