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anonymous
 one year ago
What is the inverse function of y=4*(9)^x
anonymous
 one year ago
What is the inverse function of y=4*(9)^x

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0That y is equal to four times nine to the power of x

freckles
 one year ago
Best ResponseYou've already chosen the best response.2Have you tried solving for x yet?

freckles
 one year ago
Best ResponseYou've already chosen the best response.2you could first put it in this form: \[p=a^x \text{ then rewrite as } \log_a(p)=x\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.2that is you divide both sides by 4 first you will have that desired form I mentioned .

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I am lost I don't know how to do this

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yo freckles log is too advanced original question is y=4*(9)^x inverse, flip the x and y x = 4*(9)^y solve for x

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0sorry i meant solve for y

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0http://www.coolmath.com/algebra/16inversefunctions/05howtofindtheinverseofafunction01

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0That link shows fractions my problem doesn't have fraction

freckles
 one year ago
Best ResponseYou've already chosen the best response.2\[\text{ In general, for something like: } y=b(a)^x \\ \text{ You can solve for } x \text{ by first doing } \\ \text{ division of } b \text{ on both sides } \\ \frac{y}{b}=a^x \\ \text{ now recall } \frac{y}{b}=a^x \text{ is equivalent to } \log_a(\frac{y}{b})=x\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.2just using what I had above and replacing my p with y/b
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