SOLUTION: Determine whether or not the relation is a function. {(-3, 6), (-2, 7), (-1, 8), (0, 9)}

Algebra ->  Sequences-and-series -> SOLUTION: Determine whether or not the relation is a function. {(-3, 6), (-2, 7), (-1, 8), (0, 9)}      Log On


   

Question 638906: Determine whether or not the relation is a function.
{(-3, 6), (-2, 7), (-1, 8), (0, 9)}
Answer by KMST(5328) About Me  (Show Source):
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A relation is a function if every x in its domain is paired with only one y value.
(Each x has to be faithful to its y).
The relation given is a function because:
there are only four (x,y) pairs given, and they have all different x values.
There is no x that is paired with two or more y values.