ECZ 2017 · O-Level Paper 1 — Quadratic Functions
The sketch shown below represents a section of 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
A parabola bottoms out exactly halfway between its roots. Find that x, then substitute for the VALUE of y.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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