SOLUTION: Is this relation a function, {(7,-2),(8,-2),(-5,7),(-9,1)}

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Question 553125: Is this relation a function, {(7,-2),(8,-2),(-5,7),(-9,1)}
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Since each x only maps to one y value, this means that this relation is indeed a function.