What is the domain and range of {(1,4) (0,-2) (2,3) (-1,4) (-3,0)?

1 Answer
Sep 19, 2016

Answer:

#"Domain={-3,-1,0,1,2}, &, Range="{-2,0,3,4}#.

Explanation:

When a Relation or Function , say, #f#, is defined as a Set of

Ordered Pairs, i.e., #f={(x,y)}#., its Domain and Range ,

denoted by #D and R# resp., are the Sets , defined by,

#D={ x : (x,y) in f}, and, R={y : (x,y) in f}#.

Clearly, in our case,

#D={-3,-1,0,1,2}, &, R={-2,0,3,4}#.