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OpenStudy (anonymous):
What is the inverse function of y=4*(9)^x If I solve for x what's my answer?
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OpenStudy (anonymous):
No I have no idea on how to do this
OpenStudy (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?
OpenStudy (freckles):
And then you don't have to do any work.
OpenStudy (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?
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