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Mathematics
Functions
Determining if a Relation is a Function
6. Is this relation a function {(−1, 7), (9, 4), (3, −2), (5, 3), (9, 1)}? Why or why not?
1 answer
No, this relation is not a function. This is because the input value 9 is associated with two different output values, 4 and 1. In a function, each input value must be associated with only one output value.
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