ECZ 2025 · GCE Paper 1 — Graphs of Functions

The curve y = x2 - 6x + 5 passes through A, B and C as shown in the diagram. Find the turning point of the curve.

Diagram for ECZ 2025 · GCE Paper 1
  • A. (-3, -4)
  • B. (3, 4)
  • C. (6, 5)
  • D. (3, -4)

Verified working — step 1

x-coordinate of the turning point = -b2a

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Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.

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