Question 166252: Given: (3,-1) and (-11,7) are endpoints of a diameter of a cirle.
Find the radius, center coordinates, and equation in general form
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Given: (3,-1) and (-11,7) are endpoints of a diameter of a cirle.
Find the radius, center coordinates, and equation in general form
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Center Coordinates:
x coordinate: (3-11)/2 = -4
y coordinate: (-1+7)/2 = 3
Center: (-4,3)
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Radius:
r = sqrt[(3--4)^2 + (-1-3)^2] = sqrt[49 + 16] = sqrt(65)
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EQUATION:
(x+4)^2 + (y-3)^2 = 65
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Cheers,
Stan H.
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