Home > A2C > Chapter 11 > Lesson 11.2.6 > Problem 11-119
11-119.
Change the equation x2 + 8x + y2 − 12y = 12 to graphing form and sketch a graph. Homework Help ✎
Complete the squares for both x and y.
(x2 + 8x + 16) + (y2 − 12y + 36) = 12 + 16 + 36
(x + 4)2 + (y − 6)2 = 64
This is the equation of a circle whose center is at (−4, 6) and whose radius is 8.