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

• This Question is Open
1. anonymous

No I have no idea on how to do this

2. freckles

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?

3. freckles

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

4. ybarrap

$$y=4\times 9^x\\ \ln \cfrac{y}{4}=x\ln 9\\$$ See what I did? Solve for x then exchange y for x |dw:1434655210954:dw| Make sense?