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Which of the following set is ordered pairs is NOT a function?
a.) (1,2),(2,3),(3,4),(4,5)
b.) (1,2), (1,3),(3,6),(4,8)
c.) (1,1),(2,2),(3,3)(4,4)
d.) (3,2),(4,2),(5,2),(6,2)


Sagot :

Identifying Functions

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B) (1, 2), (1, 3), (3, 6), (4, 8) is not a function.

This is not a function because the domain (1) is repeated more than once, meaning it corresponds to two ranges.

A set of ordered pairs is a function if each domain (input) corresponds to exactly one range (output).