Please help with question 4. I an stuck with it and dont know where to start. Please keep responce easily followable so I can follow along with the steps. Thank you in advance

The region bounded by the graphs of y= x -2x + 1, y =0 (x-axis) and x = 0 (y-axis) is rotated about various axes (see below) to create a solid shape. Please do the following.a) Sketch the resulting solid when this region is rotated about the y-axis. Final Answer b) Find the volume of the solid in (a) using disk/washer method