Posted by Rachel on .
The equation (x + 6)^2 + (y + 4)^2 = 36 models the position and range of the source of a radio signal. Describe the position of the source and the range of the signals.

Geometry 
Reiny,
the source would be the centre of your circle which is (6,4) and the range would be the radius of your circle which is √36 or 6