I have the given polar equation that I have to graph.(adsbygoogle = window.adsbygoogle || []).push({});

r = 5/(-1 + 2 cos θ)

The format is r = ed/(1 +e cosθ)

(e and d are always positive)

I can solve multiply r by -1/-1 --> r = -5/(1 - 2 cosθ).

Is this possible? I thought that the numerator (ed) cannot be a negative number. Is this a misprint or is there a way to solve this?

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# Homework Help: Polar equation

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