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Go to 2D xy-plane view (box icon).
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The orange curve in the xy-plane is the level set of z=f(x,y) of value 7.
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Graph the tangent line to the orange LEVEL SET at the black point.
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Question: What do you notice?
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Answer:
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All Done .
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Ignore (some calculations)
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Ignore this set-up folder (colors)
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