ECZ 2011 · O-Level Paper 1 — Linear Programming
Find the maximum value of 2x + y within the region R.

- A. 8
- B. 5
- C. 11
- D. 2
Verified working — step 1
On a straight-edged region, 2x + y peaks at a CORNER - find every vertex and test them all.The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
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