ECZ 2017 · O-Level Paper 1 — Relations and Functions
Given g(x) = 5x − 1, find g⁻¹(x).
- A. 5x + 1
- B. x − 15
- C. x + 15
- D. 15x − 1
Verified working — step 1
Let y = 5x − 1, then x = y + 15, so g⁻¹(x) = …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