Which of the following is an example of a function?

{(-1, 0), (-1, 3), (3, 9), (5, 10)}

{(1, 3), (2, 5), (3, 8), (4, 10)}

{(4, 6), (5, 9), (4, 7)}

{(0, 2), (0, 3), (1, 5), (4, 5)}

Question

Which of the following is an example of a function?

{(-1, 0), (-1, 3), (3, 9), (5, 10)}
		
{(1, 3), (2, 5), (3, 8), (4, 10)}
		
{(4, 6), (5, 9), (4, 7)}
		
{(0, 2), (0, 3), (1, 5), (4, 5)}

anonymous · Answer

it has to do with domain and ranges. You know about them?

anonymous · Answer

yes, i just cant seem to get it

anonymous · Answer

Functions have a special property in which domain values cannot be repeated

anonymous · Answer

2nd option is the right ans

anonymous · Answer

So to find the answer, go through your sets and find a one that doesnt have repeated domains.

anonymous · Answer

yeah and the second on isthe only one with no repeating x values :)

anonymous · Answer

yep