Respuesta :

prestonshelton
Hello!

The is an equation of a circle which is

(x - h)^2 + (y - k)^2 = r^2

(h, k) is the center of the circle

The position of the source will be in the center at (-6, -4)

To find the range you do 

36 = r^2

6 = r

The range is r = 6

Hope this helps!