ECZ 2018 · O-Level Paper 1 — Variation
y varies directly as the square of x and y = 96 when x = 4. Find the (b) value of y when x = 5.
- A. 150
- B. 120
- C. 156
- D. 30
Verified working — step 1
y = 6x2The 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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