2026/27 Enrolment Open · Free Assessment
Cambridge IGCSE MathematicsSyllabus 0580Unit 6: Algebra
Chapter 22

More equations, formulae and functions

Formulate equations from contextual problems, rearrange harder formulae where the subject appears twice, and master function notation, composite functions and inverse functions for Cambridge IGCSE Mathematics.

What You'll Learn

  • 01Constructing equations from word problems
  • 02Rearranging formulae with powers and roots
  • 03Rearranging when the subject appears twice
  • 04Function notation and evaluating functions
  • 05Composite functions fg(x)
  • 06Finding inverse functions f⁻¹(x)
Resources

Topical Past Papers

Practice questions from licensed topical past papers organised around this topic.

View Topical Past Papers →

Chapter Topics

4 official subtopics
22.1Setting up equations to solve problems
22.2Using and transforming harder formulae
Extended
22.3Function notation and evaluating functions
Extended
22.4Inverse functions f⁻¹(x) and composite functions fg(x)
Extended

Your Learning Journey

Plan your chapter across focused 60-minute sessions.

4 Sessions4 Hours (240 min)
01
LEARN
60 MIN
22.1 Setting up equations to solve problems
22.2 Using and transforming harder formulae
Session 1 of 4
02
LEARN
60 MIN
22.3 Function notation and evaluating functions
22.4 Inverse functions f⁻¹(x) and composite functions fg(x)
Session 2 of 4
03
PRACTICE
60 MIN
Chapter Practice
Session 3 of 4
04
EXAM
60 MIN
Past Paper Practice
Session 4 of 4
1-to-1 Mathematics Tuition · Cambridge IGCSE Mathematics

Master Chapter 22: More equations, formulae and functions with Siddharth Agrawal

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