You are packing books into boxes. The function y=20x represents the number y of books that will fit into boxes.
a. Is 4 the domain? Explain.
b. Is 60 in the range? Explain.
A. 4 is in the domain since the domain is 0≤x. There can't be negative books so that's why x must be greater than or equal to 0. b. 60 is in the range since the range is 0≤y. There can't be negative books in this situation too.
