ECZ 2014 · O-Level Paper 1 — Linear Programming
The unshaded region R in the diagram is defined by four inequalities. The broken line is not part of the region. Which set of inequalities defines R?
- A. x > 1, x ≤ 2, y ≤ 1, y ≥ x − 2
- B. x > 1, x ≤ 2, y ≥ 1, y ≥ x − 2
- C. x > 1, x ≤ 2, y ≤ 1, y ≤ x − 2
- D. x < 1, x ≥ 2, y ≤ 1, y ≥ x − 2
Verified working — step 1
One inequality per boundary - and the broken line is the strict one, excluded from R.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.
Have a different question?
Search it — if it is from a past paper or a school mock, chances are we have it worked out, or one that uses the same method.
Search any past-paper question