I recently wrote a program to check implicit differentiation and the key bit I saw in other programs was the logic amounting to:(adsbygoogle = window.adsbygoogle || []).push({});

[tex] -\frac{ \frac{dy}{dx}} {\frac{dx}{dy}}[/tex]

when given a valid (x,y) point on the curve. Can someone explain why the above generates the slope at point (x,y)?

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# Homework Help: Why does -dy/dx/dx/dy work?

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