ECZ 2015 · O-Level Paper 1 — Vectors In Two Dimensions
The position vectors of the points X and Y are 3-4 and -8-1 respectively. Express XY (the vector from X to Y) as a column vector.
- A. -113
- B. 11-3
- C. -5-5
- D. -11-3
Verified working — step 1
XY = OY − OX = matrix(-8 - 3; -1 - (-4)) = …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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