Question

Let f(x) = 5x + 12. Find f^–1(x).


12x + 5

quantity of x minus 12 over 5

1 over quantity 5x plus 12

5 over quantity x minus 12

Answer 1

this we can do.
your function says
1) multiply by 5
2) add 12

inverse function will say
1) subtract 12
2) divide by 5

write it as
\[f^{-1}(x)=\frac{x-12}{5}\]

Answer 2

:) Thank you so much!