Which of the following rules represents the set of ordered pairs?

Question

• {(1, 2), (2, 3), (4, 5), (7, 8)}

Answer 1

This is a set of ordered pairs:   {(1, 2), (2, 3), (4, 5), (7, 8)} 

 

If you consider the set to represent a function with (x,y) values [that is, each value of x has at most 1 value of y associated with it], then you recognize that:

      y = x+1

 

Now, a function has a domain (allowable values for x); here the domain is {1,2,4,7}.  And, a function has a range (allowable values for y); here the range is {2,3,5,8}.

Answer 2

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Answer 3

All 4 of these are ordered pairs.  I think the real question is, given a mathematical relation between the left and right members of the pairs, which pairs satisfy the relation?  But you need to specify what that relation is.

Answer 4

{(1, 2), (2, 3), (4, 5), (7, 8)} is a set of ordered pairs