Answer:
(x+9.3)²+(y-4.1)²=169
Step-by-step explanation:
The common equation for a circle in the coordinate plane is:
(x-h)²+(y-k)²=r²
Where (h,k) is the point at the center of the circle and r is the radius:
Here (h,k) is (-9.3, 4.1) and r is 13.
Using this we can substitute to find:
(x-(-9.3))²+(y-(4.1))²=13²
And using arithmetic to simplify we find that the equation of the circle is:
(x+9.3)²+(y-4.1)²=169
