Which relation represents a function?

C) { (-2, 2), (0, 2), (7, 2), (11, 2)}

Step-by-step explanation:

Before, answer this questions. Let's see the definition of relation and function.

Relation : A relation between two sets is a collection of ordered pairs containing one object from each set.

All set of ordered pairs are relation.

Function:  Function is a relation for which each value from the first setis associated with exactly one value from the second set of the ordered pair.

Note: All the functions are relations but not all the relations are not functions.

Now let's see the options.

The option A) is ignored because 2 is associated with two outputs

The option B) is ignored because 10 is associated with two outputs.

The option C) is the correct answer.

Each element in set A is associated exactly only one element in set B.

The option D) is ignored because 5 is associated with four outputs

C) { (-2, 2), (0, 2), (7, 2), (11, 2)}

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step-by-step explanation:

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