Question

If f(x) =x+3 all over 3 , then what is f-1(x) ? please help, i am desprate

Answer 1

\[y=\frac{x+3}{3}\] switch \(x\) and \(y\) (because that is what the inverse does) get
\[x=\frac{y+3}{y}\] then solve for \(y\)
that will be your inverse

Answer 2

you good from there?

Answer 3

thank you,
you have been of great help.

Answer 4

yw