SOLUTION: How many points on a circle fit the equation x^2-2x+y^2-4y+9=0?

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Question 1172672: How many points on a circle fit the equation x^2-2x+y^2-4y+9=0?
Answer by ikleyn(52756) About Me  (Show Source):
You can put this solution on YOUR website!
.

If you complete the squares, you will get an equivalent equation


    %28x-1%29%5E2 + %28y-2%29%5E2 = -4


which HAS NO real solutions.


THEREFORE, the answer is 0 (zero, ZERO) to the problem's question.