Find f(–2) for f(x) = 3 • 2x.A.–36B.3443 C.136361 D.–12SUBMITarrow_backPREVIOUS
Question
Find f(–2) for f(x) = 3 • 2^x.
A. –36
B. 34
C. 136
D. –12
Solution
To find f(-2) for the function f(x) = 3 • 2^x, you need to substitute -2 in place of x in the function.
So, f(-2) = 3 • 2^-2
2^-2 is the same as 1/2^2, which equals 1/4.
So, f(-2) = 3 • 1/4 = 3/4 = 0.75
None of the options A, B, C, or D match this result. There might be a mistake in the question or the provided options.
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