Find the domain and the range of the given relation StartSet

Find the domain and the range of the given relation. StartSet left parenthesis 2 comma negative 8 right parenthesis comma left parenthesis negative 7 comma negative 9 right parenthesis comma left parenthesis 9 comma 4 right parenthesis comma left parenthesis 4 comma 9 right parenthesis EndSet{(2,8), (7,9), (9,4), (4,9)} The domain is StartSet nothing EndSet

Solution

the given ordered pair => 2 R -8 , - 7 R - 9 , 9 R 4 , 4R9   

hence the domain is the collection of 1 st entries in the ordered pairs and the range is the set consists of 2nd entries in the ordered pair

D omain = { 2. -7 . 9 .4 }

Range = { - 8 , - 9 , 4 , 9 }