Domain & Range

The domain of a relation is the set of all possible input values (x-values) for which the relation is defined.

The range of a relation is the set of all possible output values (y-values) that result from the input values in the domain.

To find the range, list all the unique y-values from the ordered pairs.

A relation is a set of ordered pairs, typically representing a relationship between two sets of values.

A function is a special type of relation where each input (x-value) is associated with exactly one output (y-value).

A relation is a function if no x-value is repeated with different y-values.

The domain is {1, 2, 3}.

No, it is not a function because the x-value 1 is associated with two different y-values (2 and 3).

The domain is {2, 4, 6}.

The range is {3, 5, 7}.