ECZ 2017 · GCE Paper 1 — Variation
y varies inversely as the square root of x, with y = 8/√x. Find the value of a for which y = 89when x = a.
- A. 9
- B. 3
- C. 81
- D. 729
Verified working — step 1
89= 8/√a means √a = 9, so a = …The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
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