Question:
Solve the given inequality $3 x+2 y>6$ graphically in two - dimensional plane.
Solution:
The graphical representation of $3 x+2 y>6$ is given by blue dotted line in the figure below.
This lines divides $x-y$ plane into two parts.
Select a point (not on the line), which lies on one of the two parts, to determine whether the point satisfies the given inequality or not.
We select the point as $(0,0)$
It is observed that $0+0>6$ or $0>6$ which is false.
Therefore, the solution for the given inequality excluding the points on the line.
This can be represented as follows,
