I’ll give brainliest! which relation is a function?

(1, 2), (2, 3), (3, 4), (4, 5)
(1, 2), (3, 4), (5, 6), (1, 8)
(0, 2), (0, 4), (0, 6), (0, 8)
(1, 2), (2, 1), (1, 3), (3, 1)

How far is x from 5 on a number line?

You have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint? you have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint?

Equation for the calculation double 2 and then add 5