## Functions Modeling Change: A Preparation for Calculus, 5th Edition

$f(x)=\frac{1}{4}(9^x)$
Since $(a^b)^c=a^{bc}$, it can be said that $3^{2x}=(3^2)^x=9^x$. Therefore, the function becomes exponential with some simplification. $$f(x)=\frac{1}{4}(9^x)$$