ECZ 2019 · O-Level Paper 1 — Coordinate Geometry
In the diagram below, A is the point (0, 4) and B is the point (2, 0) and O is the origin. Find the equation of a straight line through O which is parallel to the line AB.
- A. y = -2x
- B. y = -2x + 4
- C. y = -12x
- D. y = 2x
Verified working — step 1
Parallel lines share a gradient - read it off AB, then note that a line through the origin has no constant term.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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