Question

inverse of y=7+x+2e^x

Answer 1

are you trying to find the inverse evaluated at some number
or the inverse function
I ask because to find the inverse function you have to be aware of lambert's function

Answer 2

It's to find the inverse evaluated at 9

Answer 3

\[f^{-1}(9)=x \implies f(x)=9 \\ \text{ so you just need to look at this and say for what } \\ \text{ value of } x \text{ the following equation holds } \\ 9=7+x+2e^{x} \\ \text{ this value should be pretty obvious }\]

Answer 4

hint 7+0+2 equals?

Answer 5

so x is?

Answer 6

@kdancer03 are you there?

Answer 7

Having trouble?

Answer 8

I got it the answer is 0.

Answer 9

right since f(0)=9 then f^(-1)(9)=0