ECZ 2024 · O-Level Paper 1 — Quadratic Functions

The diagram shows a sketch of the graph of a curve passing through A(-5, 0) and B(-1, 0). Find the (i) equation of the curve.

Diagram for ECZ 2024 · O-Level Paper 1
  • A. y = (x + 5)(x + 1)
  • B. y = -(x - 5)(x - 1)
  • C. y = x2 + 6x + 5
  • D. y = -(x + 5)(x + 1)

Verified working — step 1

The curve cuts the x-axis at x = -5 and x = -1.

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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