Find the domain and range.
- {(6,5),(6,6),(2,-8),(9,3),(10,-4)}
A) Domain: {-4,6,3,-8,5} ; range: {10,10,6,9,2}
B) Domain: {10,6,9,2} ; range: {-4,6,3,-8,5}
C) Domain: {10,15,6,9,2} ; range: {-4,6,3,-8,5}
D) Domain: {10,-5,6,9,2} ; range: {-4,6,3,-8,5}

Question

Find the domain and range.
- {(6,5),(6,6),(2,-8),(9,3),(10,-4)} 
A) Domain:  {-4,6,3,-8,5} ;  range:  {10,10,6,9,2} 
B) Domain:  {10,6,9,2} ;  range:  {-4,6,3,-8,5} 
C) Domain:  {10,15,6,9,2} ;  range:  {-4,6,3,-8,5} 
D) Domain:  {10,-5,6,9,2} ; range:  {-4,6,3,-8,5}

Quizplus · Accepted Answer

The domain of a set of ordered pairs is the set of all first elements, and the range is the set of all second elements. For the given set, the domain is {6, 2, 9, 10} (since 6 appears twice, it is only counted once in the set), and the range is {5, 6, -8, 3, -4}.

Find the Domain and Range