ECZ 2025 · GCE Paper 1 — Quadratic Functions
The sketch represents the graph of the curve y = x2 − 6x + 5 passing through A, B and C. Find the coordinates of the turning point of the curve.
- A. (-3, -4)
- B. (3, 4)
- C. (6, 5)
- D. (3, -4)
Verified working — step 1
The turning point's x-coordinate comes from x = -b2a; substituting it back gives the y-coordinate.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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