Question

Find a formula for the inverse of the function.

f(x) = e^5x − 7
f^-1(x) = ?

Please wait until I post my own attempt.

Answer 1

This is the question:

\[f(x)=e^{5x-7}\]
\[f^-1(x)=?\]

My own attempt:

\[\frac{ \log_{e (y) +7} }{5 } = x\]

Answer 2

I know my solution is wrong, but I cannot understand where is my mistake?

Answer 3

Is it \(e^{5x-7}\) or \(e^{5x}-7\)?

Answer 4

the first one you said

Answer 5

then it's because you've done stuff in the wrong order... working out please? :)

Answer 6

what should I do then?

Answer 7

please show me your working out

Answer 8

y = e^5x-7
f^-1(y) = e^5x -7

Answer 9

please show all the step by step working. That will show you where you went wrong :)