ECZ 2020 · GCE Paper 1 — Quadratic Functions

The diagram below is the graph of y = -4x - 12² + 9. Find the (ii) coordinates of C.

Verified working — step 1

C sits on the y-axis, where x = 0 - substitute and evaluate carefully; C is NOT the turning point.

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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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