Question

Evaluate the function rule for the given value. f(x)=3^x for x=-5

Answer 1

`(1)/(243)`

Explanation:

using the rule of exponents

`a^(-m)` ⇔
`(1)/(a^(m) )`

f(- 5) =
`3^(-5)` =
`(1)/(3^(5) )` =
`(1)/(243)`