ECZ 2010 · O-Level Paper 1 — Coordinate Geometry
The points A and B are (4, 0) and (0, 8) respectively. Find the equation of AB.

- A. y = 2x + 8
- B. y = -2x + 8
- C. y = -x + 8
- D. y = 8x - 2
Verified working — step 1
Gradient = 8 - 00 - 4= -2, and the line cuts the y-axis at 8, 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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