Cambridge IGCSE Mathematics
2.13Functions
Functions in Cambridge IGCSE Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic40 practice questions2 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 2.13.1Extended: use function notation and understand the domain and range of a function.
- 2.13.2Extended: find the inverse function f⁻¹(x).
- 2.13.3Extended: form composite functions such as gf(x) = g(f(x)).
Lessons
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Function notation
30 min
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Inverse and composite functions
30 min
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Sample question
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