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Function: IB Maths Definition

Naomi C

Written by: Naomi C

Reviewed by: Roger B

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Contents

  1. 1. What is a function in IB maths?
  2. 2. Function revision resources to ace your exams

What is a function in IB maths?

In the context of the IB Maths course, a function is a fundamental concept that describes a relationship between two sets of values.

A function is typically written as f open parentheses x close parentheses. Each element in the domain, x, is associated with exactly one element in the range, y. This relationship is often expressed through an equation, such as y equals f open parentheses x close parentheses, where f is the function, x represents the input value, and f open parentheses x close parentheses represents the output.

Functions are used to model real-world situations and solve problems, allowing students to analyse patterns, make predictions, and gain deeper insights into mathematical concepts.

Function revision resources to ace your exams

Save My Exams has a great range of resources to explore the topic of functions in more detail. Try exploring these revision notes on language of functions, composite & inverse functions and graphing functions.

Explore our IB Maths revision resources.

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Author
Reviewer
Naomi C

Author: Naomi C

Expertise: Maths

Naomi graduated from Durham University in 2007 with a Masters degree in Civil Engineering. She has taught Mathematics in the UK, Malaysia and Switzerland covering GCSE, IGCSE, A-Level and IB. She particularly enjoys applying Mathematics to real life and endeavours to bring creativity to the content she creates.

Roger B

Author: Roger B

Expertise: Maths

Roger's teaching experience stretches all the way back to 1992, and in that time he has taught students at all levels between Year 7 and university undergraduate. Having conducted and published postgraduate research into the mathematical theory behind quantum computing, he is more than confident in dealing with mathematics at any level the exam boards might throw at you.

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