ECZ 2020 · GCE Paper 1 — Coordinate Geometry

Given that the lines 3y = x + 6 and y = kx + 12 are perpendicular, find the value of k.

Verified working — step 1

3y = x + 6

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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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