Find the domain and the range of the relation.
-$\{ ( 8,5 ) , ( 8 , - 9 ) , ( 8 , - 1 ) \}$
A) domain: $\{ 8 \}$; range: $\{ - 9 , - 1,5,8 \}$
B) domain: $\{ 8 \}$; range: $\{ - 9 , - 1,5 \}$
C) domain: $\{ 5,8 \}$; range: $\{ - 9 , - 1 \}$
D) domain: $\{ - 9 , - 1,5 \}$; range: $\{ 8 \}$

Question

Quizplus · Accepted Answer

The domain of a relation is the set of all first elements of the ordered pairs, and the range is the set of all second elements. In this relation, all ordered pairs have 8 as their first element, so the domain is {8}. The second elements are 5, -9, and -1, making the range {-9, -1, 5}.

Find the Domain and the Range of the Relation {(8,5),(8,−9),(8,−1)}\{ ( 8,5 ) , ( 8 , - 9 ) , ( 8 , - 1 ) \}{(8,5),(8,−9),(8,−1)}

Find the Domain and the Range of the Relation $\{ ( 8,5 ) , ( 8 , - 9 ) , ( 8 , - 1 ) \}$