Figure 8.43 is a contour diagram of f(x, y). In each of the following cases, list the
Chapter 8, Problem 16(choose chapter or problem)
Figure 8.43 is a contour diagram of f(x, y). In each of the following cases, list the marked points in the diagram (there may be none or more than one) at which (a) fx < 0 (b) fy > 0 (c) fxx > 0 (d) fyy < 0 Q P R S 1 2 3 4 x y Figure 8.43
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