Question:
Solve the given inequalities $2 x-y>1, x-2 y<1$ graphically in two-dimensional plane.
Solution:
The graphical representation of $2 x-y>1, x-2 y<1$ is given by common region in the figure below.
$2 x-y>1 \ldots \ldots$ (1)
$x-2 y<1 \ldots \ldots(2)$
Inequality (1) represents the region below line $2 x-y=1$ (excluding the line $2 x-y=1$ ).
Inequality (2) represents the region above line $x-2 y=1$ (excluding the line $x-2 y=1$ ).
Therefore,every point in the common shaded region including the points on the respective lines represents the solution for the given inequalities.
This can be represented as follows,
