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Which of the following lists of ordered pairs is a function?

A. (1,1),(2,3)(1,5),(4,7)
B. (2,4),(-2,4), (3,9), (-2,-4)
C. (2,4), (3,9),(4,16), (5,25)
D. (0,2), (4,2), (0, -4), (4.-2)

2 Answers

3 votes
C because the guy above me said it and I trust it
User Edijae Crusar
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2 votes
c because no number on the left is repeated
User Domih
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