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1 vote
The relation is not

User Hitokiri
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1 Answer

3 votes

For a relation to be a function, each input have to give a single output, that is, each x value must be related to only one y value.

In the given realtion, we already have associations for the x values 2, -9, 14 and 5, so if we add another relation for one of thouse x values, the relation won't be a function anymore.

From the alternatives, we can see that the only one that has a relation of one of the "x" listed above is the alternative with 2:


(2,18)

So, the answer is the fourth alternative.

User Egor Sazanovich
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