SOLUTION: I need help finding the radius and center of a circle with the following equation x squared+ y squared + 4x + 10y + 15 = 0 thanks!
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Question 32587: I need help finding the radius and center of a circle with the following equation x squared+ y squared + 4x + 10y + 15 = 0 thanks! Answer by mukhopadhyay(490) (Show Source):
You can put this solution on YOUR website! For circle (x-h)^2 + (y-k)^2 = r^2, center is (h,k) and radius is r
x^2+y^2+4x+10y+ 15 = 0
=> (x+2)^2 + (y+5)^2 = -15+4+25
=> (x+2)^2 + (y+5)^2 = 14
Center is (-2,-5) and radius is sqrt(14)
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