SOLUTION: Find the equation of the circle that passes through (-2, 1), (4, -3), and (4.7)

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Question 1186876: Find the equation of the circle that passes through (-2, 1), (4, -3), and (4.7)
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Find the equation of the circle that passes through A(-2,1), B(4,-3), and C(4,7)
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Find the perpendicular bisectors of AB and of BC.
The intersection is the center.
The distance from the center to any of the points is the radius.
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Here's another way.
| x   y x^2+y^2  1|
|-2   1    5     1|
| 4  -3   25     1| = 0
| 4   7   65     1|

You can make an Excel sheet to solve it.