ECZ 2024 · O-Level Paper 1 — Geometrical Transformations
The diagram in the answer space shows triangle ABC with vertices A(2, 3), B(4, 2) and C(4, 4). Triangle ABC is mapped onto triangle A1B1C1 under a reflection in the line x = 6. Draw triangle A1B1C1 on the diagram in the answer space.
- A. A1(10, -3), B1(8, -2), C1(8, -4)
- B. A1(6, 3), B1(8, 2), C1(8, 4)
- C. A1(4, 3), B1(2, 2), C1(2, 4)
- D. A1(10, 3), B1(8, 2), C1(8, 4)
Verified working — step 1
A mirror line works point by point: each image sits the same distance behind x = 6 as its point sits in front, and the y-coordinate never changes.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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