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Exercises from Illustrative MathematicsA set of 2 exercises, commentary, and solutions
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Students write the equation for a circle in center-radius form, (x - a)^2 + (y - b)^2 = r^2 using the Pythagorean theorem or the distance formula.Students write the equation of a circle given the center and radius. Students identify the center and radius of a circle given the equation.Teacher and Student versions of full lesson from engageNY
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Students complete the square in order to write the equation of a circle in center-radius form.Students recognize when a quadratic in x and y is the equation for a circle.Teacher and Student versions of full lesson from engageNY
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Writing and Graphing the Equations of CirclesLearning Objectives:Graph a circle.Find the equation of a circle in the coordinate plane.Find the radius and center, given the equation of a circle and vice versa.Find the equation of a circle, given the center and a point on the circle.Lesson, videos, exercises, and text from CK-12. Additional resources available at this site.
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An excellent tutorial from mathopenref.com
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