ECZ 2010 · O-Level Paper 1 — Geometrical Transformations
Describe fully the single transformation which maps triangle XYZ with vertices (-5, 1), (-3, 1), (-5, 5) onto triangle X2Y2Z2 with vertices (1, 5), (1, 3), (5, 5).
- A. Rotation of 90° anticlockwise about the origin
- B. Reflection in the line y = x
- C. Rotation of 90° clockwise about the origin
- D. Rotation of 180° about the origin
Verified working — step 1
Each point (x, y) maps to (y, -x): (-5, 1) goes to (1, 5), (-3, 1) to (1, 3) and (-5…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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