Give the domain and range of the relation.
-$$\{ ( 2,2 ) , ( - 1 , - 1 ) , ( - 6 , - 6 ) , ( 5,5 ) \}$$
A) domain: $\{ - 6 , - 1,2,5 \}$; range: $\{ - 6 , - 1,2,5 \}$
B) domain: $\{ 2,5 \}$; range: $\{ - 6 , - 1 \}$
C) None of these
D) domain: $\{ - 6 , - 1 \}$; range: $\{ 2,5 \}$

Question

Quizplus · Accepted Answer

The domain and range of a relation are the sets of first and second elements of each ordered pair, respectively. In this relation, both the domain and range are $\{ - 6 , - 1,2,5 \}$ because each ordered pair is of the form $(x, x)$, meaning the first and second elements are identical for all pairs.

Give the Domain and Range of the Relation {(2,2),(−1,−1),(−6,−6),(5,5)}\{ ( 2,2 ) , ( - 1 , - 1 ) , ( - 6 , - 6 ) , ( 5,5 ) \}{(2,2),(−1,−1),(−6,−6),(5,5)}

Give the Domain and Range of the Relation $\{ ( 2,2 ) , ( - 1 , - 1 ) , ( - 6 , - 6 ) , ( 5,5 ) \}$