ECZ 2020 · GCE Paper 1 — Variation

It is given that y varies inversely as the square of x. The table below shows some values of x and corresponding values of y. x2b6y94a Find the (a) value of k, the constant of variation,

  • A. 4.5
  • B. 72
  • C. 36
  • D. 18

Verified working — step 1

y = kx2

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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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