Find the Inverse Function of F Informally $f ^ { - 1 } ( x ) = \frac { 1 } { 6 } x$

Multiple Choice

Find the inverse function of f informally.
F(x) = 6x

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