4. [-l1 Points] DETAILS MY NOTES Find a formula for the graph of the polynomial function shown below. Use either 1 or -1 for the leading coefficient. flx) = For instructor's notes only. Do not write in the box below. l J This answer has not been graded yet. Submit Answer 5. [l3 Points] DETAILS MY NOTES You plan to build a closed cylindrical container. The material used for the lateral sides costs 9 dollars per square foot while the material for the top and bottom costs 18 dollars per square foot. (a) Express the volume of the cylinder in terms of the cylinder's radius, r, and height, h. V = (b) Express the cost of building the closed cylinder ll"l terms of the cylinder's radius, r, and height, h. (c) If the total cost of building the container is 360 dollars, express the volume of building the cylinder, V in terms of the cylinder's radius, r. Wr) =