|
2x+y>0 |
-2x-y>-8 |
(6,9) |
21>0 so TRUE |
-21<-8 so FALSE |
(-2,4) |
0=0 so FALSE |
0>-8 so TRUE |
(0,0) |
0=0 so FALSE |
0>-8 so TRUE |
No solution because none of the ordered pairs give FALSE for both conditions. Each ordered pair satisfies one of the inequalities but not both.