Question

18. What is the value of f(-2) for the function f(x) = 2(3Y"?A12fca=acze33B118С.29D. 18

Answer 1

Given the function:

`f(x)=2(3)^x`

To find f(-2), substitute x for -2 in the function.

`f(-2)=2(3)^(-2)`

Solving further using law of indicies, we have:

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

ANSWER:

`(2)/(9)`