ECZ 2016 · O-Level Paper 1 — Variation
It is given that w varies directly as the square of x and inversely as y. Write an expression for w, in terms of x, y and a constant k.
- A. w = kx²⁄y
- B. w = ky⁄x²
- C. w = kx2y
- D. w = kxy2
Verified working — step 1
Translate word by word: DIRECT variation goes on top, INVERSE variation goes underneath.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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