Write an Equation of the Inverse for the One-To-One Function $f ^ { - 1 } ( x ) = \frac { 1 } { 2 x - 9 }$

Multiple Choice

Write an equation of the inverse for the one-to-one function f (x) = 2x - 9.

A) $f ^ { - 1 } ( x ) = \frac { 1 } { 2 x - 9 }$
B) $f ^ { - 1 } ( x ) = \frac { x - 9 } { 2 }$
C) $f ^ { - 1 } ( x ) = \frac { x + 9 } { 2 }$
D) $f ^ { - 1 } ( x ) = \frac { 9 } { x } - 2$