Part 3: Assume that the height of your cylinder is 8 inches. Consider A as a function of 'r', so we can write that as Afr} = 2 W2 + 16 in". What is the domain of A (1\")? In other words, for which values of \"r is A (1') defined? Part b: Continue to assume that the height of your cylinder is 8 inches. Write the radius 'r' as a 'Function of A. This is the inverse 'Function to A (T), i.e., to turn A as a function of r' into i" as a function of A. r(A)= @3