Referring to the contour map in Figure 2: (a) Estimate the average rate of change of elevation

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Referring to the contour map in Figure 2:
(a) Estimate the average rate of change of elevation from A to B and from A to D.
(b) Estimate the directional derivative at A in the direction of v.
(c) What are the signs of ƒx and ƒy at D?
(d) At which of the labeled points are both fx and fy negative?

B A V 750 .C D 650 400

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Calculus

ISBN: 9781319055844

4th Edition

Authors: Jon Rogawski, Colin Adams, Robert Franzosa

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