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5x + 4y le 20, x ge 1, y ge 2...

`5x + 4y le 20, x ge 1, y ge 2`

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First inequation : `5x + 4y le 20`
Corresponding equation : `5x + 4y = 20`
This line passes through the points A(4, 0) and B (0, 5) . Join AB. At point (0, 0) form the inequation is that region of XY-place divided by line AB in which (0, 0) lies.
`x ge 1` is that region in XY-plane which is the line x = 1 and the right side of this line.
`y ge 2` is that region in XY-plane which is the line y = 2 and above this line.

The common solution of three inequation is shown by the shaded region PQR.
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