(7) Find the point of intersection (If any) of the line with equations and the plane with equation 2x- 2v 12 = 12 (8) You are given the equation of the following quatric surface. 9x + 4y? -362' -36 -0 (a) Write the equation in standard form and give the axis of symmetry and its correct name. (b) Sketch the traces of this surface in each of the coordinate planes. (c) Sketch the cross sections of this surface parallel to the x y plane. Make sure that you consider cross sections both above and below the x-y plane. (9) what is the equation for the surface of revolution created by revolving the graph of 3x = 4y around the x-axis? Is it quadrie