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Which set of points represents a function which is not one-to-one?

choice 1:
{(3, 2), (9, 6), (0, 7), (6, 5), (2, 0)}
Choice 2:
{(9,6), (4,3), (5, 4), (8, 0), (7, 9)}
Choice 3:
{(4,3), (8,5), (8, 7), (0, 2), (1, 6)}
Choice 4:
{(2, 6), (0, 2), (8, 9), (1, 1), (4, 6)}

Which set of points represents a function which is not one-to-one? choice 1: {(3, 2), (9, 6), (0, 7), (6, 5), (2, 0)} Choice-example-1

1 Answer

6 votes

Answer:

Choice 4

Explanation:

A one to one function has every domain with only one range as their individual output. Choice 4 has the output 6 mentioned twice for both 2 and 4 so therefore it's not a one to one function because the range 6 has two outputs 2 and 4.

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