Question 642014: What is the domain of the relation
{(3,1),(2,4),(4,4),(1,5)}
Answer by Edwin McCravy(20081)   (Show Source):
You can put this solution on YOUR website!
The DOMAIN is the set of four FIRST coordinates {3,2,4,1}
However it is customary to list them in order and remove any
duplications:
DOMAIN = {1,2,3,4}
The RANGE is the set of all four second coordinates: (1,4,4,5}
However it is customary to list them in order and remove any
duplications:
RANGE: {1,4,5}
Edwin
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