|  | 
| 
 
 
| Question 661577:  3x^2+3y^2−12x−12y−3=0 is the equation of a circle with center (h,k) and radius r for:
 h =
 k =
 r =
 Answer by lwsshak3(11628)
      (Show Source): 
You can put this solution on YOUR website! 3x^2+3y^2−12x−12y−3=0 is the equation of a circle with center (h,k) and radius r : **
 standard form of equation for a circle:(x-h)^2+(y-k)^2=r^2, (h,k)=(x,y) coordinates of center, r=radius
 3x^2+3y^2−12x−12y−3=0
 complete the square
 3x^2−12x+3y^2−12y−3=0
 3(x^2−4x+4)+3(y^2−4y+4)=3+12+12
 3(x-2)^2+3(y-2)^2=27
 divide by 3
 (x-2)^2+(y-2)^2=9
 h =2
 k =2
 r =3
 
 | 
  
 | 
 |  |  |