. The equation (x + 5) + (y + 3) = 169 models the position and range of the source of a radio signal. Describe the position of the source and the range of the signals....
The radio would be located at (-5, -3) in the Cartesian Plane and would have a range of 13 units.
Basically, the situation is modeled by a circle with a center at (-5, -3) and a radius of 13.
have you tried 15 17 and 19?