The solution set of the shaded area above is - JAMB Mathematics 2006 Question

The solution set of the shaded area above is

A

Y ≥ 0, y ≥ x and y + x ≤ 4

B

Y ≤ x, y + x ≤ 4

C

Y + x ≥ 4, y ≤ x

D

Y ≤ x, y + x ≤ 4 and y ≥ 0

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Correct Option: B

Y = x implies y ≤ x

Y + x = 4 implies y = 4 – x

∴y = 4 – x

∴y ≤ x, y + x ≤ 4 and y ≥ 0

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