ECZ 2018 · O-Level Paper 1 — Quadratic Functions

The diagram below shows a sketch of the graph of y = 2 + x - x² passing through the points E and G. Find the (b) maximum value of y.

Verified working — step 1

The roots are x = -1 and x = 2.

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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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