ECZ 2013 · O-Level Paper 1 — Variation
Given that y = kx2m - 1with k = 5, find the value of m when y = 2 and x = 4.
- A. 10
- B. 11
- C. 5.5
- D. 5
Verified working — step 1
2 = 542m - 1, so 2(2m - 1) = 20, giving 2m - 1 = 10 and m = …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.
Have a different question?
Search it — if it is from a past paper or a school mock, chances are we have it worked out, or one that uses the same method.
Search any past-paper question