Question

What is the domain for relation `R: (2,3),(3, 4), (-2, 5), (-1, -2)`?

Answer 1

In the set of ordered pairs `R: (2, 3), (3, 4), (-2, 5), (-1, -2)`, the domain is the set of the first number in every pair (those are the x-coordinates): {2, 3, -2, -1}.