You can put this solution on YOUR website! Just take the x values and do what they do in that Glade commercial: "PLUG IT IN, PLUG IT IN!!"
A.
y = 4x + 8
x y
-3| 4(-3) +8= -12 +8=-4
-2| 4(-2) +8 =-8 +8 = 0
-1| 4(-1) + 8= =4 + 8 = 4
0 | 4(0) + 8 = 8
You do the next one, I'll draw the graphs:
B.
y = x + 4
x y
0
1
2
3