Y=2x+3
X-2 Y=1
X=-1 y=1
X=0y=3
X=1y=5
X=2y=7
------------
Y=-x+6
Y=12
Y=9
Y=4
Y=3
Y=-1
------------
Y=-11x
Y=33
Y=11
Y=-22
Y=-44
Y=-55
---------
Y=-4x-1
Y=19
Y=7
Y=3
Y=-13
Y=-17
---------
Y=5x-4
Y=-34
-19
-4
16
21
-----------
Y=3x-7
-25
-22
-10
-1
1
5
------- that is all
