Answer:
Step-by-step explanation:
f(x) = -2x
x & f(x)
-2 is 4
-1 is 2
0 is 0
1 is -2
2 is -4
f(x)=-2x-4
-2 is 0
-1 is -2
0 is -4
1 is -6
2 is -8