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With x ≥ 3, x + y ≥ 5, x + 2y ≥ 6 and y ≥ 0, what happens when maximising 2y - x?
AZ has no maximum
BMaximum is 6
CMaximum is 3
DMaximum is 0
Answer & Solution
Correct answer: A. Z has no maximum
The region is unbounded in the y direction, and Z grows without limit as y increases, so no maximum exists.
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