Domain and range can be represented as word sentences, in list form, on number lines, and algebraically.

Set-builder notation is another common way of representing domain and range.

Recall:
R is for Real Numbers
Q is for Rational Numbers
is for Irrational Numbers
I or Z is for Integers
N is for Natural Numbers
W is for Whole Numbers



Set-builder Notation
a symbolic way of representing a set of values by describing the characteristics of that set. Domain and range are often represented using set-builder notation.

 

Example 4

Determine the domain and range of the relation represented in the graph below using words and set-builder notation.