The set of ordered pairs below defines a relation. In each ordered pair (x, y), x represents the daily wages of an electrician, and y represents the daily wages of her assistant.

{(95, 64), (110, 42), (80, 42), (125, 80), (110, 80)}

What is the difference between the values of the least and greatest elements in the domain of the relation?

15

30

38

45

Question

The set of ordered pairs below defines a relation. In each ordered pair (x, y), x represents the daily wages of an electrician, and y represents the daily wages of her assistant. 

{(95, 64), (110, 42), (80, 42), (125, 80), (110, 80)} 

What is the difference between the values of the least and greatest elements in the domain of the relation?

 15

 30

 38

 45

anonymous · Answer

the question is asking, 'subtract the largest x value from the smallest x value in the set given.'