# What is the domain of R: {(6, −2), (1, 2), (−3, −4), (−3, 2)} ?

##### 2 Answers

#### Explanation:

If you're studying

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Elsif you're studying

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The domain of the relation is: {-3, 1, 6}.

#### Explanation:

The domain of a relation is the set of all numbers that occur first in an ordered pair in the relation.

For

A set is completely determined by its element -- that is, by the things in the set, regardless of order of presentation of repetition, so the set:

{-3, 1, 6}. I've simply chosen to write the elements of the domain in increasing order.

**By the way**

Because the relation has two different pairs with the same first element, this relation is not a function.