Question

The volume of air inside a rubber ball with radius r can be found using the function . What does represent?

Answer 1

Since in this problem, we are dealing with a balloon we can now say that the container or the shape we are dealing with is a sphere. The volume of a sphere is
`V = (4)/(3) \pi r^(3)` hence the volume is directly proportional to the radius. The volume increase by a factor of
`r^(3)`