Question 20 — IGCSE 0580 May/June 2024 Paper 23
Cambridge IGCSE Mathematics 0580, Extended tier, non-calculator. Topic: Functions and Graphs · Graphs of functions. Worth 4 marks.
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Question text
20 f(x) = 3x+2
(a) Find x when f(x) = 245.
x = ................................................ [2]
(b) Find x when f-1(x) = 7.
x = ................................................ [2]
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