Question

Which relation is a function?

x y
4 -2
5 -3
6 -2
7 -3


x y
3 10
2 20
3 30
4 40


x y
-5 2
-5 3
-10 4
-10 5


x y
10 15
20 25
8 30
20 35

Answer 1

does anybody know about functions?

Answer 2

the first one is. It can only be a function if each input has only 1 output

Answer 3

ohh perciate it

Answer 4

np :D

Answer 5

i got sum more u think u can help

Answer 6

Which relation is a function?
{(2, 3), (1, 5), (2, 7)}
{(-1, 5), (-2, 6), (-3, 7)}
{(11, 9), (11, 5), (9, 3)}
{(3, 8), (0, 8), (3, -2)}