hannahsoutherland22 hannahsoutherland22

18-04-2019
Mathematics

contestada

Given the function f(x) = 3x2 − 4, what is f(-2)?

A. -40
B. -16
C. 8
D. 32

Respuesta :

desperatesmile desperatesmile

18-04-2019

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

Answer Link

queensheep queensheep

18-04-2019

^^ correct! It would be 8! Your answer is C.

Answer Link

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