# What is the domain and range for (3,1), (1,-4), and (2, 8)?

##### 1 Answer

Jun 19, 2018

In the set of ordered pairs {(3, 1), (1, -4), (2, 8)}, the **Domain** is the set of the first number in every pair (those are the x-coordinates): {3, 1, 2} or {1, 2, 3}.

The **Range** is the set of the second number of all the pairs (those are the y-coordinates): {1, -4, 8} or {-4, 1, 8}.