ECZ 2017 · O-Level Paper 1 — Quadratic Functions
For the curve y = x(x − 2), what is the minimum value of the function?
- A. 0
- B. −1
- C. 1
- D. −2
Verified working — step 1
The minimum lies on the axis of symmetry, halfway between the roots 0 and 2, at x = 1. Substituting: y = 1(1 − 2) = …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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