ECZ 2012 · O-Level Paper 1 — Coordinate Geometry
Find the gradient of the straight line with equation 4x + 2y = 9.
- A. -2
- B. 2
- C. -4
- D. 92
Verified working — step 1
Rearrange into y = mx + c: 2y = -4x + 9, so y = …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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