in each case, all the 1st coordinates are the domain, and the 2nd coordinates are the range.
If no element of the domain appears more than once, it is a function.
give the domain and the range for the following set of ordered pairs and determine if the ordered pairs represent a function.
A)
(1,2)(3,4)(5,5)(4,4)(5,4)
B)
(4,1)(5,1)(6,1)(7,1)(8,1)
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