State the domain and range of the following relation. Is the relation a function?

1: Domain: 2, 4, 3, 6, 2

2: Range: -3, 6, -1, 6, 3

3: Not a function

Explanation:

Domain is x-values aka input value. Range is y-value aka output value. The input value (x) is the first number in the ordered pair and the output value (y) is the second number. For example, say the pair is (4,6) The input value is 4 and output value is 6. We could also say 4 is the Domain and 6 is the Range. In conclusion, x is Domain and range is y.

In order for a set of pairs to be a function, the x values can't be repeated. For example, say the the x values are 3, 6, 7, 4, and 3. Then, this is not a function because there are two 3's that are x values. This only applies for x value (input value) and not y value. There can be multiple of the same y-values aka output value.