What is the range of {-2,1}{-2,-1}{1,1}{1,2}{1,-1}?

1 Answer
Jul 8, 2015

Range = {-1, 1, 2}


When a relation is defined by a set of ordered pairs, the collection of values composed of the first number in each pair form the Domain, the collection of second values from each pair form the Range.

The notation provided in the question is (itself) questionable. I interpreted it to mean:
#color(white)("XXXX")##(x,y) epsilon {(-2,1), (-2,-1), (1,1), (1,2), (1,-1)}#