If the Function Is One-To-One, Find Its Inverse $$f ( x ) = - 6 x + 1$$

Multiple Choice

If the function is one-to-one, find its inverse. If not, write ʺnot one-to-one.ʺ
- $$f ( x ) = - 6 x + 1$$

A) $f ^ { - 1 } ( x ) = - \frac { 1 } { 6 } x + 1$
B) $f ^ { - 1 } ( x ) = - \frac { 1 } { 6 } x - \frac { 1 } { 6 }$
C) $\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = - \frac { 1 } { 6 } x - 1$
D) $\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = - \frac { 1 } { 6 } x + \frac { 1 } { 6 }$