Question 854520
{{{y=2x+4}}}
Interchange x and y and solve for the new y.
That new y will be the inverse.
{{{x=2y+4}}}
{{{2y=x-4}}}
{{{highlight(y=(1/2)(x-4))}}}
.
.
{{{graph(300,300,-5,5,-5,5,2x+4,(1/2)(x-4))}}}