Respuesta :

f(x)=-4x

-4*-4=16
0*-4=0
4*-4=-16
8*-4=-32
The answer is C) f(x) = -4x

Explanation:
When solving an f(x) equation you more times than not need to plug the x into the equation like so;

- 4 ( -4 ) =  16
-4 ( 0 ) = 0
-4 ( 4 ) = -16
-4 ( 8 ) = -32