Solve the given inequalities $x+2 y \leq 10, x+y \geq 1, x-y \leq 0, x \geq 0, y \geq 0$ graphically in two - dimensional plane.
The graphical representation of $x+2 y \leq 10, x+y \geq 1, y \geq 0$
$x-y \leq 0, x \geq 0$ is given by common region in the figure below.
$x+2 y \leq 10 \ldots \ldots$ (1)
$x+y \geq 1 \ldots \ldots$ (2)
$x \geq 0 \ldots \ldots$ (3)
$y \geq 0$ ……. (4)
$x-y \leq 0 \ldots \ldots(5)$
Inequality (1) represents the region below line $x+2 y=10$ (including the line $x+2 y=10$ ).
Inequality (2) represents the region above line $x+y=1$ (including the line $x+y=1$ ).
Inequality (3) represents the region in front of line $x=0$ (including the line $x=0$ ).
Inequality (4) represents the region above line $y=0$ (including the line $y=0$ ).
Inequality (5) represents the region above line $x-y=0$ (including the line $x-y=0$ ).
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,
