Question 147880
To find the inverse of a function, replace f(x) with y.
{{{y=4x-3}}}
The next step is interchange y for x and vice versa.
{{{highlight(x)=4*highlight(y)-3}}}
Then solve for y.
{{{x=4y-3}}}
{{{4y=x+3}}}
{{{y=(x+3)/4}}}
The inverse of f(x),
{{{f^(-1)(x)=(x+3)/4}}}