Asked by Kiki
The endpoints of a diameter of a circle are (3, 4) and (7, –2). What is an equation of the circle?
Answers
Answered by
Reiny
So the midpoint is (5, -1)
and the equation would be
(x-5)^2 + *y+1)^2 = r^2
plug in one of the end points of the diameter to get r^2
check your answer by plugging in the other point, you should get the same r^2 value
and the equation would be
(x-5)^2 + *y+1)^2 = r^2
plug in one of the end points of the diameter to get r^2
check your answer by plugging in the other point, you should get the same r^2 value
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