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 (b) gf(x).
- A. 6x - 9
- B. 2x - 9
- C. 6x - 3
- D. 5x - 3
Verified working — step 1
gf(x) = g(f(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.
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