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Which sets of ordered pairs represent relations that are functions? You may choose more than one correct answer.

A. {(1, 0), (2, 0), (3, 0), (4, 0)}
B. {(2, 3), (2, 4), (2, 5), (2, 6)}
C. {(1, 1), (2, 2), (3, 3), (4, 4)}
D. {(1, 3), (-1, 4), (1, 4), (-1, 3)}
E. {(6, -6), (-6, 6), (5, -5), (-5, 5)}

2 Answers

1 vote
(x,y)
x never repets with a different y

A. nothing wrong
B. 2 repeats with 3,4,5,6
C. no repeats, fine
D. -1 and1 repeat with 4 and 3
E. no repeats, fine

A,C,E,
User Jack Cole
by
8.3k points
4 votes
It is A, C and E. Hope this helps.
User Lookitsatravis
by
8.7k points

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