Solve the inequalities graphically in two-dimensional plane: `x-ylt=2`

Explanation

The graphical representation of `x + y = 5` is given as a dotted line in the figure below.


This line divides the XY plane into two planes I and II.


Select a point (not on the line), which lies in one of the half-planes, to determine whether the point satisfies the given inequality or not.


We select the point as `(0, 0)`.


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