SOLUTION: Find the radius of the circle in problem 3. problem 3 is find the center of the circle with equation (x-3)2 +(y+4)2=25.

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Question 202400This question is from textbook Geometry
: Find the radius of the circle in problem 3. problem 3 is find the center of the circle with equation (x-3)2 +(y+4)2=25. This question is from textbook Geometry

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
The standard form of the equation for a circle with its center at (h, k) and radius of r is:
%28x-h%29%5E2%2B%28y-k%29%5E2+=+r%5E2 Comparing this with the given equation:
%28x-3%29%5E2%2B%28y%2B4%29%5E2+=+25
You can readily see that the center is: (3, -4) and the radius is: r+=+sqrt%2825%29 or r+=+5