Answer:
-8
Step-by-step explanation:
1. [tex]f(x)=-2x[/tex]
2. [tex]f(4) = -2(4)[/tex]
3. [tex]f(4) = -8[/tex]
f(4) says "what's the y-value when x=4"?
Substitute 4 for x:
f(4) = -2 (4)
= -8
