Respuesta :

-8-5(-4)
-8+20
f(-4)=12

Answer:

f(-4) = 12

Step-by-step explanation:

Hello!

Here f(x) = -8 - 5x.  We want f(-4).

Subst. -4 for x in the above equation.  Then f(-4) = -8 -5(-4) = -8+20 = 12.