ECZ 2022 · GCE Paper 1 — Relations and Functions
Given that f(x) = x - 4 and h(x) = 2x + 3, find (b) h-1(5),
- A. 4
- B. 1
- C. -1
- D. 11
Verified working — step 1
h-1(x) = x - 32The 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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