ECZ 2024 · GCE Paper 1 — Coordinate Geometry
Two points A and B have coordinates (−5, −3) and (−1, a) respectively. Given that the gradient of the line AB is 2, find the value of a.
- A. -5
- B. 1
- C. 5
- D. 8
Verified working — step 1
The gradient of a line through two points is rise over run - the change in y divided by the change in x. Set it equal to the given gradient of 2.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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