Question

represent the following inequation in two dimensional plane and hence solve it : x-2y<=-1​

Answer 1

x−y≤2  is the shaded region shown in the graph.

If we put O(0,0) in the LHS,we get LHS=0

Now LHS<0

Means O(0,0) lies on "less than " side of  the line.

Hence required region is "origin" side of the line.