How we write sets that make up the domain and range of functions often depends on how the relation or function are defined or presented to us. Finding the Domain and Range Using Toolkit Functions. As for the range we look at the y values.
Just like our previous examples a quadratic function will always have a domain of all x values.
The domain of S is the set of all first coordinates in the ordered pairs. So the domain in set builder notation is x 3 x 4. Finding the Domain and Range Using Toolkit Functions. For example we can use lists to describe the domain of functions that are given as sets of ordered pairs.