CPM Homework Banner

Home > CCG > Chapter 12 > Lesson 12.2.4 > Problem 12-105

12-105.

Describe each circle by finding the center and radius. You need to “complete the square” to rewrite the equation in part (b) in graphing form.

  1. Recall the standard form for a circle:

    where the point is the circle's center and is the radius.

  2. Center: 

    Radius: