[Chardem]

I am a bit confused about getting corner points when I only have two inequalites. The question is
Minimize a=x+y
Subject to: x+7y>=1
11x+2y>=1
x,y>=0

I need to plot them and find the corner points, but doing it with a system of linear equations will only produce one corner point. Could someone explain to me how to get corner points in this question?

Thanks

[harum]

Remember that x>0 and y>0 are also lines.