Answer:
We don't need to remove any ordered pair because it is a function.
Step-by-step explanation:
A relation is a function if each first coordinate is related to only one second coordinate.
For example, (-5, 1), (3, 2) and (3, 7) is not a function because 3 is related to 2 and 7.
So, for the relation in the question: (-5,0) (-1-3) (4,-2) (6,-1), we don't need to remove any ordered pair because it is a function.