Question

Find f(—2) for f(x) = 2 • 3^x.

A. 1/18

B. 2/9

C. -18

D. -36

Answer 1

B. 2/9

Explanation:

You just need to replace x with -2:

F(-2) 2*
`3^(-2)` the second power of 3 is 9 and since there's a minus sign in front of 2 we turn the value upside down so it's 1/9

f(-2) = 2*1/9

f(-2) = 2/9