ECZ 2017 · GCE Paper 1 — Variation
y varies inversely as the square root of x, where x is positive. Write an expression for y in terms of x and the constant of variation k.
- A. y = k√x
- B. y = k/√x
- C. y = kx2
- D. y = √xk
Verified working — step 1
Translate word by word: "inversely as Q" always means k over Q - and here Q is the square root of x.The full step-by-step working and final answer, plus the video lesson for this topic, 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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