Question 626096
Is it possible that a system of linear inequalities can have solutions in all quadrants?
'
Certainly.  Even 1 linear inequality can have solutions in all quadrants,
for example

{{{drawing(400,400,-10,10,-10,10,graph(400,400,-10,10,-10,10,y<x+4),

graph(400,400,-10,10,-10,10)   )  }}}


Edwin</pre>