Solve the system of inequalities graphically :`5x+4ylt=20 ,xgeq1,ygeq2`

Answer

N/a

Explanation

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.