Suppose that His the finite region bounded by y = I, y = I + 4, a: = I], and a: = 1. Find the exact value of the volume of the object we obtain when rotating R about the I-axis. HULE: THE DISK METHOD Let f {I} be continuous and honhegative. Define R as the region bounded above by the graph o1 f[:l:} , below by the :E-axjs, on the left by the line I = a, and on the right by the line :I: = I). Then. the volume of the solid of revolution tonhed by revolving R around the I-EDE'IS is given by b v: f were. {2-3)