A spherical balloon with a radius "r" inches has volume V(r)=(4/3)(pi)(r^3). Find the function that represents the amount of air required to inflate the balloon from a radius of "r" inches to a radius of r+1 inches.

Answer 1

Plug in r+1 where "r" is in the V(r) formula. Then subtract V(r)= (4/3) pi r^3

You will get a new formula for the increase in volume