Find the Inverse Function Of $f ( x ) = 4 - 7 x$

Multiple Choice

Find the inverse function of $f ( x ) = 4 - 7 x$ .

A) $f ^ { - 1 } ( x ) = \frac { 1 } { 7 } x - 4$
B) $f ^ { - 1 } ( x ) = \frac { 4 - x } { 7 }$
C) $f ^ { - 1 } ( x ) = \frac { 1 } { 7 } x + 4$
D) $f ^ { - 1 } ( x ) = \frac { x - 4 } { 7 }$
E) The function does not have an inverse.