5. To the right is a contour map for a function f that describes the topography of a park. -26 0.6 -17 08 92- 36 NO (a) Estimate the values of f, fx and fy 0.4 12 at the point (x, y) = (-0.2, 0.3). 26 -7 17 3 22 3 12 17 0.2 3 -26 12 22 3 (b) What is the equation for the tan- 12 gent plane to the graph of f at 0 98- the point corresponding to (x, y) = -36 -17 M (-0.2, 0.3)? -0.2 -26 -26 -17 22 12 3 3 -7 (c) Estimate fax, fry, fyx and fyy at the 12 -0.4 -17 22 point (x, y) = (-0.2, 0.3). 26 -0.6 36 -26 -0.6 -0.4 -0.2 0.6 C 0.2 0.4 X