ECZ 2019 · O-Level Paper 1 — Relations and Functions
The functions f and g are defined by f(x) = 2x - 3 and g(x) = 3x. Find (a) f-1(x).
- A. x + 32
- B. x + 23
- C. 2x + 3
- D. x - 32
Verified working — step 1
Let y = 2x - 3.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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