SOLUTION: Determine whether the relation is a function? Explain.. ( 1 , -2) ( 2 , 1) ( 3 , 6 ) ( 4 , 13 ) ( 5 , 22 )

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Question 1130138: Determine whether the relation is a function? Explain.. ( 1 , -2) ( 2 , 1) ( 3 , 6 ) ( 4 , 13 ) ( 5 , 22 )

Answer by Boreal(15235) About Me  (Show Source):
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It is. All the x values are different. For something not to be a function, an x value would have two y-values. Therefore, if the x-values are all different, there can't be one with two y-values.