SOLUTION:
Case: Circle equations
Method:
The endpoints of the diameter are P(-2, -1) and Q(-6, -3)
The diameter therefore:

The radius therefore is:

The equation of a circle is given as:

The center (a, b) is the midpoint between P and Q

The center (a,b) is (-4, -2)
Final answer:
![(x-[-4])^2+(y-[-2])^2=5](https://img.qammunity.org/2023/formulas/mathematics/college/n037h1cjvuqw1sx811j5kx8ciht7s3nft6.png)