This is based on the equation of a circle centre (-10,5) and radius >1. So the graph consists of concentric circles extending indefinitely outwards. Just a few circles are shown in the picture:
The most central circle represents the lower limit. All the rest of the x-y plane outside this circle is completely filled with concentric circles radiating from (-10,5) without limit. The circumference of the innermost circle is the inner boundary and has a radius of 1.