Find the equation of a circle with a center at (7, 2) and a point on the circle at (-2, -5).
Question
Asked 1/21/2015 10:11:40 AM
Updated 1/21/2015 7:16:21 PM
Flagged by janezeshun [1/21/2015 7:14:56 PM]
Original conversation
User: Find the equation of a circle with a center at (7, 2) and a point on the circle at (-2, -5).

Question
Asked 1/21/2015 10:11:40 AM
Updated 1/21/2015 7:16:21 PM
Flagged by janezeshun [1/21/2015 7:14:56 PM]
Rating
3
The equation of a circle with a center at (7, 2) and a point on the circle at (-2, -5) is
(x - 7)^2 + (y - 2)^2 = 130 .
r^2 = (7 + 2)^2 + (2 + 5)^2
r^2 = 81 + 49
r^2 = 130
(x - 7)^2 + (y - 2)^2 = 130
Added 1/21/2015 7:16:21 PM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [1/21/2015 7:52:26 PM]

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