You must understand the meaning and structure of function notation. Functions can be defined and described in various ways.

## Software/Applets used on this page

This page uses

jsMathYou can get a better display of the maths by downloading special TeX fonts from

jsMath. In the meantime, we will do the best we can with the fonts you have, but it may not be pretty and some equations may not be rendered correctly.

## Glossary

### function

A rule that connects one value in one set with one and only one value in another set.

### union

The union of two sets A and B is the set containing all the elements of A and B.

**Full Glossary List**

More in this topic

1 Match Composite Functions 2

2 Exam Question

3 Exam Question

4 Function notation

5 Investigate Odd and Even Functions

6 Explore Composite Functions 2

7 Exam Question

8 Exam Question

9 Introduction

10 Evaluating

11 Values of functions

12 Values of functions 2

13 Values of functions 3

14 Values of functions 4

15 Composition 3

16 Exam Question

17 Even functions

18 Even functions 2

19 Even functions 3

20 Odd functions

21 Odd functions 2

22 Odd functions 3

23 Exam Question

24 O-test 5

25 True or false O-test 1

26 True or false O-test 2

27 O-test 6

28 Matching O-test 1

29 Matching O-test 2

30 Exam Question

31 Exam Question

32 Exam Question

33 Exam Question

34 Exam Question

35 Exam Question

36 Exam Question

37 Exam Question

38 Exam Question

39 Exam O-test

40 Exam timed O-test