### Home > CCA2 > Chapter 12 > Lesson 12.2.2 > Problem12-115

12-115.

Change the equation $x^2+8x+y^2-12y=12$ to graphing form and sketch a graph.

$(x^2+8x+16)+(y^2−12y+36)=12+16+36$

$(x+4)^2+(y−6)^2=64$

How can you determine the center and radius of the circle from this equation?