SOLUTION: write the standard form of the equation of the circle with the given center (-2,-4) and radius 6.

Algebra ->  Linear-equations -> SOLUTION: write the standard form of the equation of the circle with the given center (-2,-4) and radius 6.      Log On


   



Question 325005: write the standard form of the equation of the circle with the given center (-2,-4) and radius 6.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The general equation for a circle centered at (h,k) with a radius R is:
%28x-h%29%5E2%2B%28y-k%29%5E2=R%5E2
%28x-%28-2%29%29%5E2%2B%28y-%28-4%29%29%5E2=6%5E2
%28x%2B2%29%5E2%2B%28y%2B4%29%5E2=36
x%5E2%2B4x%2B4%2By%5E2%2B8y%2B16=36
x%5E2%2B4x%2By%5E2%2B8y-20=0