Give the domain and range of the relation.
-$$\{ ( 3,7 ) , ( - 1 , - 8 ) , ( - 7 , - 4 ) , ( 5 , - 8 ) \}$$
A) domain: $\{ - 8 , - 7 , - 4 , - 1 \}$; range: $\{ 3,5,7 \}$
B) domain: $\{ - 7 , - 1,3,5 \}$; range: $\{ - 8 , - 4,7 \}$
C) domain: $\{ 3,5,7 \}$; range: $\{ - 8 , - 7 , - 4 , - 1 \}$
D) domain: $\{ - 8 , - 4,7 \}$; range: $\{ - 7 , - 1,3,5 \}$

Question

Quizplus · Accepted Answer

The domain of a relation consists of all the first elements of the ordered pairs, and the range consists of all the second elements. For the given relation, the domain is $\{3, -1, -7, 5\}$ and the range is $\{7, -8, -4, -8\}$. After removing duplicates and ordering, the domain is $\{-7, -1, 3, 5\}$ and the range is $\{-8, -4, 7\}$.

Give the Domain and Range of the Relation {(3,7),(−1,−8),(−7,−4),(5,−8)}\{ ( 3,7 ) , ( - 1 , - 8 ) , ( - 7 , - 4 ) , ( 5 , - 8 ) \}{(3,7),(−1,−8),(−7,−4),(5,−8)}

Give the Domain and Range of the Relation $\{ ( 3,7 ) , ( - 1 , - 8 ) , ( - 7 , - 4 ) , ( 5 , - 8 ) \}$