ECZ 2020 · O-Level Paper 1 — Variation
y varies directly as the cube root of x and inversely as the square of z, with constant of variation 16. Find (b) the equation connecting x, y and z.
- A. y = ∛x16z²
- B. y = 16z² / ∛x
- C. y = 16∛xz²
- D. y = 16x³ / z²
Verified working — step 1
With k = 16, the relationship is y = …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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