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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. Homework Help ✎

  1. Recall the standard form for a circle:

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

  2. Center: 

    Radius: