# Given the set of ordered pairs {(2,5), (5,2),(-2,2)}, how do you determine the domain and range?

Jul 4, 2015

The domain is the set of first value, the range is the set of second value.

#### Explanation:

For the set of ordered pairs {(2,5), (5,2),(-2,2)},

The Domain is: $\left\{2 , 5 , - 2\right\}$
(Which may also be written: $\left\{- 2 , 2 , 5\right\}$ if you want to put the numbers in order.)

The range is: $\left\{5 , 2\right\}$
(This is the same as $\left\{5 , 2 , 2\right\}$.

A set is completely determined by what is in it, regardless of the order or number of times it is written down.