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TWIN problem was solved under this link
https://www.algebra.com/algebra/homework/Graphs/Graphs.faq.question.1175010.html
4 minutes ago.
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Are you going to list all possible numbers as the center coordinates and radii ?
Does your curiosity extend so far ?
For your info: there are INFINITELY MANY such numbers.
PLEASE DO NOT POST SAME TYPE OF PROBLEMS AGAIN.
Thank you.
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I got your comment.
Let me tell you THIS:
1) Please do not teach me how to teach.
I know it in 77 times better than you.
2) Your reaction on my posts is absolutely INADEQUATE.