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Find f(—2) for f(x) = 2 • 3^x.

A. 1/18

B. 2/9

C. -18

D. -36

Find f(—2) for f(x) = 2 • 3^x. A. 1/18 B. 2/9 C. -18 D. -36-example-1

1 Answer

9 votes

Answer:

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

User Samuel Neff
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