Question

What is the inverse function of y=4*(9)^x

Answer 1

That y is equal to four times nine to the power of x

Answer 2

Have you tried solving for x yet?

Answer 3

you could first put it in this form:
\[p=a^x \text{ then rewrite as } \log_a(p)=x\]

Answer 4

that is you divide both sides by 4 first you will have that desired form I mentioned .

Answer 5

I am lost I don't know how to do this

Answer 6

yo 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

Answer 7

?

Answer 8

sorry i meant solve for y

Answer 9

http://www.coolmath.com/algebra/16-inverse-functions/05-how-to-find-the-inverse-of-a-function-01

Answer 10

I don't know how

Answer 11

That link shows fractions my problem doesn't have fraction

Answer 12

\[\text{ In general, for something like: } y=b(a)^x \\ \text{ You can solve for } x \text{ by first doing } \\ \text{ division of } b \text{ on both sides } \\ \frac{y}{b}=a^x \\ \text{ now recall } \frac{y}{b}=a^x \text{ is equivalent to } \log_a(\frac{y}{b})=x\]

Answer 13

just using what I had above
and replacing my p with y/b

Answer 14

?