Find the volume of the solid generated by revolving the area bounded by the given curves about the indicated axis using the appropriate method. Show the graph (you can use any graphing software, e.g., Mathway, desmos, etc. for the graph). 1.) x+y=5, y=0, x=0; about y=0 2.) y=sinx, x=0, y=1; about y=1 3.) y^2=8x, y=2x; about y=4