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3x + 4y le 12...

`3x + 4y le 12`

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Given inequation : ` 3x + 4y le 12`
Corresponding equation : `3x + 4y = 12`
This line cuts the X-axis at A(4, 0) and Y-axis at B(0, 3).
Draw a line a by joining the points A(4, 0) and B(0, 3).
As point `(0, 0), 0 le 12 `(Ture)

Therefore, shade that region of XY-plane divided by line AB in which (0, 0) lies.
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