Neil started a stamp collection with 12 stamps. every week, he adds 4 more stamps to the collection. which function f represents the relationship between the number of stamps (s) and the number of weeks (w)?

s = f(w) = 12 + 4w

w = f(s) = 12s + 4

s = f(w) = 12 + 4s

w = f(s) = 12w + s

s = f(w) = s – 12