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Which relation is a function? {(8, –4), (–4, 8), (–4, –8), (–8, 4)} {(5, –7), (4, 6), (–3, 8), (5, 9)} {(9, –1), (–1, 9), (9, 2), (2, –1)} {(2, 3), (–2, 3), (3, 2), (–3, –2)}
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21 votes
Which relation is a function?

{(8, –4), (–4, 8), (–4, –8), (–8, 4)}

{(5, –7), (4, 6), (–3, 8), (5, 9)}

{(9, –1), (–1, 9), (9, 2), (2, –1)}

{(2, 3), (–2, 3), (3, 2), (–3, –2)}

User Bhanu Sharma
by
9.2k points

2 Answers

14 votes

Explanation:

the last one.

because no x values repeat.

User Mark Hibberd
by
8.6k points
1 vote
The answer is the last one
User Jon Norton
by
8.4k points
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