Given the function f(x) = 3x2 − 4, what is f(-2)?
A. -40
B. -16
C. 8
D. 32
2 answers:
^^ correct! It would be 8! Your answer is C.
All this is asking you to do is plug in -2 for x
So
f(x)=3x²-4
f(-2)=3(-2²)-4
f(-2)=12-4
f(-2)=8
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