Determine the signs of the partial derivatives for the function $f(x,y)$ whose contour map is graphed below.

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1. $f_x(1,0)$ choose one Positive Negative Zero

2. $f_y(1,0)$ choose one Positive Negative Zero

3. $f_x(-1,0)$ choose one Positive Negative Zero

4. $f_y(-1,0)$ choose one Positive Negative Zero

5. $f_x(0,-1)$ choose one Positive Negative Zero

6. $f_y(0,-1)$ choose one Positive Negative Zero

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Note: You can click on the graph to enlarge the image.

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Note: You only have two attempts at this problem.