ECZ 2025 · O-Level Paper 1 — Linear Programming
Write the three inequalities that define the unshaded region R on the diagram.
- A. 2x + 5y ≤ 0 2x - 3y + 16 ≥ 0 x ≤ 1
- B. 2x + 5y ≥ 0 2x - 3y + 16 ≥ 0 x ≥ 1
- C. 2x + 5y ≥ 0 2x - 3y + 16 ≥ 0 x ≤ 1
- D. 2x + 5y ≤ 0 2x - 3y + 16 ≤ 0 x ≥ 1
Verified working — step 1
The lower boundary passes through (-5, 2) and (0, 0).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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