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 - 32

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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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