Question

Use the function below to fine F(-2)

F(x)=3^x

A.1/6
B.1/9
C.-9
D.-6

Answer 1

\(\huge a^{-b}=\dfrac{1}{a^b}\)

Answer 2

`Step 1`:
you have to plug in -2 instead of x, into the function (that is, into 3\(^x\))

`Step 2`:
Evaluate the expression, you have (after plugging in 2 for x), using the rule that @jenny1994 wrote out for you.

`Step 3`:
Lastly, (simplify the result, if there is anything to simplfy).