ECZ 2024 · O-Level Paper 1 — Linear Programming
Write the three inequalities that define the unshaded region R on the diagram below.

- A. y ≤ 4; y ≤ x + 4; y ≥ -2x - 8
- B. y ≤ 4; y ≥ x + 4; y ≤ -2x - 8
- C. y ≤ 4; y ≥ x + 4; y ≥ -2x - 8
- D. y ≥ 4; y ≥ x + 4; y ≥ -2x - 8
Verified working — step 1
The horizontal boundary is y = 4.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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