Across section of a parabolic satellite dish can be modeled by the equation y=1/48x^2. how far from the vertex of the cross section? explain

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the given curves about y = 8.8y = x3, y = 0, x = 4use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the given curves about y = 8.8y = x3, y = 0, x = 4