SOLUTION: I am trying to find the radius of a circle with the center being -4,7. I have come up with a number of different answers but none are correct. using the (x-h)sqaured + (y-k)squar

Algebra ->  Rational-functions -> SOLUTION: I am trying to find the radius of a circle with the center being -4,7. I have come up with a number of different answers but none are correct. using the (x-h)sqaured + (y-k)squar      Log On


   



Question 338869: I am trying to find the radius of a circle with the center being -4,7. I have come up with a number of different answers but none are correct. using the (x-h)sqaured + (y-k)squared doesnot seem to work.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
%28x%2B4%29%5E2%2B%28y-7%29%5E2=R%5E2
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Do you have a point on the circle to test?
If so, plugging it into this equation will get you a solution for R.