This is not a circle....it is an ellipse
The center is (5,1).....
The major axis is vertical.....the vertices along this axis are (5, 1 + √32) and (5, 1 - √32)
The minor axis is horizontal.......the vertices along this axis are ( 5 + √8, 1) and ( 5 - √8, 1)
Here's the graph : https://www.desmos.com/calculator/i8bwbkv672