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

1 Answer
Jul 4, 2015

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


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

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

The range is: #{5,2}#
(This is the same as #{5,2,2}#.

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