Part a: Assume that the height of your cylinder is 88inches.ConsiderAAas a function ofrr, so we can write that asA(r)=2r2+16rAr=2r2+16r. What is the domain ofA(r)Ar? In other words, for which values ofrrisA(r)Ardefined?

Part b: Continue to assume thatthe height of your cylinder is 88 inches. Write the radius rras a function of AA. This isthe inverse function to A(r)Ar, i.e., to turn AAas a function of rrintorras a function ofAA.