Question

Find f(- 2) for
`f(x) = 5 * {3}^(x)`

Answer 1

Given:

`f(x)=5*3^x`

Find: f(-2)

Explanation:

put x=-2 in the given equation.

`\begin{gathered} f(x)=5*3^x \\ x=-2 \\ f(-2)=5*3^(-2) \\ f(-2)=(5)/(3^2) \\ f(-2)=(5)/(9) \end{gathered}`

Final answer: the required answer is

`(5)/(9)`