(adsbygoogle = window.adsbygoogle || []).push({}); 1. Find a Cartesian equation to represent the curve r = 9 cosθ

2. I know that rcosθ= x and cos θ= x/r

3. I got (x-9/2)^2 +y^2 = (9/2)^2 but its coming up wrong when I put it into our online homework. Can anyone help me?

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# Homework Help: Cartesian Equations

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