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Exam-style practice

Functions answer explanations

Review worked answers and explanations for Functions. Aligned to Cambridge IGCSE Mathematics.

Answer explanations

Question 1 of 2

Review the answer support, then move sideways through the set.

Paper 2 structured question: Functions

Paper 2Core or Extended Mathematics2 marks

Description

Functions f and g

Given the functions f(x) = 3x + 5 and g(x) = x + 2.

  1. a

    Calculate Find fg(x).

    [2]