ECZ 2026 · GCE Paper 1 — Quadratic Functions
The diagram shows a sketch of the graph of y = (-2x + 4)(x + 5), which crosses the x-axis at A and B. Find the coordinates of A and B.
- A. A(-2, 0) and B(5, 0)
- B. A(-5, 0) and B(4, 0)
- C. A(0, -5) and B(0, 2)
- D. A(-5, 0) and B(2, 0)
Verified working — step 1
A and B are where the curve meets the x-axis, so y = 0 there. A product is zero only when one of its brackets is zero.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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