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Glossary

Domain: IB Maths Definition

Naomi C

Written by: Naomi C

Reviewed by: Roger B

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Contents

  1. 1. What is domain in IB maths?
  2. 2. Domain revision resources to ace your exams

What is domain in IB maths?

In the context of the IB Maths course, a domain refers to the complete set of possible input values for which a given function is defined.

Essentially, it includes all the values that can be used as inputs (usually represented as x) in a function. This must exclude any values that would result in mathematical contradictions or undefined expressions, such as division by zero or the square root of a negative number when dealing with real numbers.

Domain revision resources to ace your exams

Save My Exams has a great range of resources to explore the concept of domain within the topic of functions. 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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