Answer:
[tex]f^-1(x)=x-4[/tex]
Explanation:
[tex]f(x)=x+4\\y=x+4\\[/tex]
We first replace f(x) with y.
We then switch x and y.
[tex]x=y+4[/tex]
We then find y in terms of x in our new equation.
[tex]y=x-4[/tex]
We then replace y with [tex]f^-1(x)[/tex].
[tex]f^-1(x)=x-4[/tex]
