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# geometry

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Find the center and radius of the circle with equation (x + 2)2 + (y + 7)2 = 81.

May 23, 2019

#1
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$$(x+2)^2 + (y+7)^2 = 81 = 9^2\\~\\ \text{you can read the center right off as (-2,-7) and the radius as 9}$$

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May 23, 2019

$$(x+2)^2 + (y+7)^2 = 81 = 9^2\\~\\ \text{you can read the center right off as (-2,-7) and the radius as 9}$$