A function has a domain of {1, 3, 5, 7} and a range of {2, 4, 6}. Which set of ordered pairs represents this function?

(1, 2), (3, 4), (5, 6), (7, 2)}

{(1, 2), (3, 6), (5, 4), (5, 2)}

{(1, 2), (3, 2), (5, 2), (7, 2)}

{(1, 4), (3, 4), (5, 6), (7, 6)}

Question

A function has a domain of {1, 3, 5, 7} and a range of {2, 4, 6}.  Which set of ordered pairs represents this function?

    (1, 2), (3, 4), (5, 6), (7, 2)}

	
{(1, 2), (3, 6), (5, 4), (5, 2)}

	
{(1, 2), (3, 2), (5, 2), (7, 2)}

	
{(1, 4), (3, 4), (5, 6), (7, 6)}

stephy052902 · Answer

@AloneS @Aleah54 @AliMaeHemmings @Bela

math&ing001 · Answer

{(1, 2), (3, 6), (5, 4), (5, 2)} is not a function so we eliminate that.
Which function of the left choices covers all the range (ie. 2, 4, and 6) ?

welshfella · Answer

the choice that math just gave is not a function because there are duplicate values of x  ( the 5)

welshfella · Answer

Note the range consists of the  second numbers in the ordered pairs.