Please help! which one of these are a function?
also please only answer if you know how to do it

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

Which graph represents the function g(x) = |x + 4| + 2?

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )