Which relation is a function?

the set of ordered pairs, 2 comma 4, 2 comma 1, 2 comma 3

the set of ordered pairs, 4 comma 1, 3 comma zero, 3 comma 3

the set of ordered pairs, 1 comma 2, 3 comma 4, 5 comma 6

the set of ordered pairs, zero comma 1, 1 comma 2, 1 comma 8

Question

Which relation is a function? 

 the set of ordered pairs, 2 comma 4, 2 comma 1, 2 comma 3 

 the set of ordered pairs, 4 comma 1, 3 comma zero, 3 comma 3 

 the set of ordered pairs, 1 comma 2, 3 comma 4, 5 comma 6 

 the set of ordered pairs, zero comma 1, 1 comma 2, 1 comma 8

parthkohli · Answer

Do you understand what the question means?

anonymous · Answer

nope

parthkohli · Answer

Then why are you studying this?

anonymous · Answer

The question means which set of ordered pairs doesn't have an x value with 2 different y values. Does that make sense?

anonymous · Answer

ya thanks and i am studying it cause i have to :(

anonymous · Answer

No problem :)