2. (3+3+4 points) Consider the function f (3:, y) = \"5 (dened for y 7 0). (a) Sketch the contour map of this function. Specically label the level curves for K = 0, 1, 2. (b) Draw the crosssections corresponding to :1: = 2, and to y = 2. (0) Suppose we travel along the crosssection :1: = 1 of the surface 2 = f (at, y) from the point of the surface above (1, 1) to the point of the surface above (1, 3). What is the area of the region lying between this path and the orgplane