7. A cylindrical can needs to have a volume of 10 cubic inches. There needs to be a label around the side of the can. The function S(r) = 20 gives the area of the label in square inches where r is the radius of the can in inches. a. As r gets closer and closer to 0, what does the behavior of the function tell you about the situation?
b. As r gets larger and larger, what does the end behavior of the function tell you about the situation?