Question

Find f(–4) for f(x) = 9(3)x.

Answer 1

1/9

Explanation:

Answer 2

subsitute -4 for x
remember that
`x^(-m)=(1)/(x^m)`

so
for x=-4

`f(-4)=9(3)^(-4)`

`f(-4)=9((1)/(3^4))`

`f(-4)=9((1)/(81))`

`f(-4)=(9)/(81)`

`f(-4)=(1)/(9)`
answer is A