If the Following Defines a One-To-One Function, Find Its Inverse $f(x)=4 x-6$

Multiple Choice

If the following defines a one-to-one function, find its inverse. If not, write "Not one-to-one."
- $f(x) =4 x-6$

A) $f^{-1}(x) =\frac{x-6}{4}$
B) $f^{-1}(x) =\frac{x}{4}+6$
C) Not one-to-one
D) $f^{-1}(x) =\frac{x+6}{4}$