Hi,

In Q1, in the first inequality we have x+y >=3

First of all I set y as y=y_{1}-y_{2}, and added the constraint y_{1},y_{2} >= 0, so that now I have x+y_{1}-y_{2} >= 3

Next I changed it to the standard input, so that now I have: -x-y_{1}+y_{2} <= -3

Then I changed it to the slack format: t_{1} = -3+x+y_{1}-y_{2} >= 0, with x=y_{1}=y_{2}=0

The problem is that now I have t_{1}=-3 which is not >=0 …

This also applies the second equation, where i get t2 = -12+3x+2y_{1}-2y_{2} >= 0

How should we handle this situation?

Thank you,

Sharon

Ex6 Q1