Question

which of the following relation is a function
6.-1
3-5
3-7
2-1
OR
3-1
3-2
2-3
1-4

Answer 1

For a function, every x-value coincides with only one y-value

Answer 2

but is that the same rule for a relation

Answer 3

Nope

Answer 4

A relation is a relation so long as they coincide

Answer 5

So if a y-value happens twice for any x-value, its not a function

Answer 6

but all my answers have two of the same numbers in the y value

Answer 7

The y-value is on the right side