Find the Domain for relation R (2,3),(3, 4), (-2, 5), (-1, -2)

Question

this is for my online Algebra 2 class and i am in desperate need of help it's looking for the domain of relation

Answer 1

Given coordinate pairs are (2,3), (3,4),(-2,5), (-1,-2)

x values is half coordinate pair and y values is half coordinate pair of the intersection point.

x values is domain of function and y values is range of function.

Set of domain of function is {2,3,-2,-1}