Chapter 2 The Cartesian Coordinate System, Lines and Circles

How do you convert from center-radius form to general form? How do you convert from general form to center-radius form? If you are only given two points on the circle, how can you find its equation? Module 12 (pp. 101-110) What is the domain and range of a line that is neither horizontal nor vertical? What about a horizontal line? ................
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