ECZ 2022 · GCE Paper 1 — Linear Programming
Write down the three inequalities that define the unshaded region R on the diagram below.
- A. x ≤ 7; y ≥ x; y ≥ x + 23
- B. x ≥ 7; y ≤ x; y ≥ x + 23
- C. x ≤ 7; y ≤ x; y ≥ x + 23
- D. x ≤ 7; y ≤ x; y ≤ x + 23
Verified working — step 1
The vertical boundary is x = 7. Region R is to the left: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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