(Solved): 3. The contour diagram for a function f(x, y) is shown below. Determine whether each of the follow ...

3. The contour diagram for a function f(x, y) is shown below. Determine whether each of the following is positive or negative, and give a reason for your answer: 3.0 25.2 2.5 2.0 1.5 1.0 3.6 0 1.0 3.6 1.5 7.2 (d) fyy (2.5, 2) 10.8 14.4 2.0 21.6 28.8 2.5 36 18 32.4 39.6 43 46.8 3.0 (a) f(2.5, 2) (b) fy(2.5, 2) (c) fax (2.5,2) Note: For the second derivatives, measure the spacing between con- tours VERY carefully.