Answer the following neatly and completely. 1. Given f(x, y) = 4x3yz, evaluate fr(1, y) and fy (x, 2). dw dw 2. Given w = 2ye sin(xz), find and dy dz1. Find the point P such that = = r, where A(4,3, -2), B(-5,0,4) and r = WIN 2. Sketch the graph of the cylinder given by 4x2 + 9y? = 36. 3. Identify the quadric surface and sketch the graph. z = x2 + 4y (Hint: Use z = 4 as a cross section)