ECZ 2022 · O-Level Paper 1 — Relations and Functions

Given that f(x) = 3x + 1 and g(x) = 4x - 1, find (b) f-1(-5),

  • A. 2
  • B. -1.33
  • C. -16
  • D. -2

Verified working — step 1

f-1(x) = x - 13

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Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.

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