Question

What is the inverse function of y=4*(9)^x
If I solve for x what's my answer?

Answer 1

No I have no idea on how to do this

Answer 2

Why don't you just compare your equation to my equation and just replace my b with your b and my a with your a then?

Answer 3

And then you don't have to do any work.

Answer 4

$$
y=4\times 9^x\\
\ln \cfrac{y}{4}=x\ln 9\\
$$
See what I did?

Solve for x then exchange y for x


Make sense?