Given the equation 2x^2 + 2y^2 -8x +20y -6 = 0 a)  What is the Center C? b)  What is the length of the radius r?



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Posted on (Answer #1)

We have given equation as


Factor out 2 from each term and write expression as





`` Thus

A. Centre =(2,-5)

B. radius= `4sqrt(2)`


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