Question 149825: I have completely forgotten anything that has to do with finding the domain, the range, and if there a set of points is a function. Can you please help me by explaining it to me? Here is a set of points that I need to identify the domain, the range, and tell whether it is a function or not: {(2,3),(3,7),(5,-1),(0,0). Please, someone clarify this for me!
Answer by vleith(2983)   (Show Source):
You can put this solution on YOUR website! Domain is all the X coordinates
Range is the Y coordinates
It is a function If and only If each X maps to a single Y. More than one X can map to the same Y, but any specifci X can map to only one Y
In your case the domain is {0,2,3,5}
The range is {0, 3, 7, -1}
It is a function
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