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Which is an equation of a circle with center (-5, -7) and radius 6? (x + 5)2 + (y + 7)2 = 6 (x + 7)2 + (y + 5)2 = 36 (x + 5)2 + (y + 7)2 = 36 (x - 5)2 + (y - 7)2 = 6
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Which is an equation of a circle with center (-5, -7) and radius 6?

(x + 5)2 + (y + 7)2 = 6
(x + 7)2 + (y + 5)2 = 36
(x + 5)2 + (y + 7)2 = 36
(x - 5)2 + (y - 7)2 = 6

User Ulyana
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I would say (x+5)2+(y+7)2=36. -5,-7 is the center so in the equation the signs are going to be switched to positive and the radius is always squared when talking about the equaiton of a circle.
User Geoffreys
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