Please Show all your steps, and theorems used

9 Sketch the region between y = 729:9=0, x =0 and r = 3. Using the washer method (also known as the slicing method), find the volume of Q, where @ is the solid obtained by rotating this region about the line y = 0. As part of your solution, explain what information from curve sketching you used to determine the sketch of this region. Recall curve sketching was discussed in Math 1300