ECZ 2022 · GCE Paper 1 — Variation

y varies directly as x and inversely as the square of z and y = 8 when x = 4 and z = 1. Find the (a) value of k, the constant of variation,

  • A. 2
  • B. 8
  • C. 12
  • D. 32

Verified working — step 1

y = kxz2

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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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