### Home > INT3 > Chapter 3 > Lesson 3.2.4 > Problem3-115

3-115.

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?