Question 838737
These are linear equations so you only need two points each.
Choose x=0 and y=0
 y=3x+8
x=0
y=8
plot(0,8)
y=0
0=3x+8
3x=-8
x=-8/3 which is almost -3
plot (-8/3,0)

connect those two points
 x+2y=2
x=0
y=1
plot (0,1)
y=0
x=2
plot (2,0)
connect those two points

Submit only one problem at a time and NO similar problems.