SOLUTION: Is the relation {(1,-1),(2,-2),(3,-3)} a function? Explain why or why not.

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Question 706352: Is the relation {(1,-1),(2,-2),(3,-3)} a function? Explain why or why not.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Each x value only corresponds to EXACTLY ONE y value. So this is definitely a function.


IF you had something like (2,4) and (2,7), then the x value of 2 corresponds to more than one y value (two in fact: 4 and 7). So it wouldn't be a function if this was the case.