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Suppose you are climbing a hill whose shape is given by the equation z = 1000...

Suppose you are climbing a hill whose shape is given by the equation z = 1000 – 0.005x^2 – 0.01y^2 , where x, y and z are measured in meters and you are standing at a point with coordinates (60, 40, 966). The positive x-axis points east and the positive y-axis points north.

a) If you walk due south, will you start to ascend or descend? At what rate?

b) If you walk northwest, will you start to ascend or descend? At what rate?

c) In which direction is the slope the largest? What is the rate of ascent in that direction?

Math   Calculus   
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