From the contour map of f shown below de- de whether fx and fy are positive, negative, r zero at P. 1. fx < 0, 2. fx 0, = 3. fx < 0, 4. fx > 0, 5. fx = 0, 6. fx > 0, fy > 0 fy > 0 fy < 0 fy < 0 fy < 0 fy > 0 y X (part 2 of 4) Determine whether the partial derivatives fæ, fy of f are positive, negative or zero at the point P on the graph of f shown in 1. fx < 0, 2. fx 0, 3. fx 0, 4. fx < 0, 5. fx < 0, 6. fx > 0, 7. fx = = X = 0, 8. fx > 0, fy < 0 fy > 0 fy < 0 0 fy fy > 0 fy > 0 = 0 fy fy - = 0

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