What is the domain and range of {(4,2),(1,3),(3,3),(6,4)}?

1 Answer
Johnson Z.
Dec 20, 2015

Domain: #{1,3,4,6}rArr# listed in increasing order
Range: #{2,3,4}rArr# listed in increasing order

Explanation:

Since these points are single points and are not connected by lines, you would not have #{x in RR}#, which means "#x# can be any real number". They would only be single x-coordinates.

Although the y-coordinate, #3#, appears more than once in one of the points, you only list it once in the range. You should never have two of the same numbers in a domain or range.

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