Equations of Circles

Popular Tutorials in Equations of Circles

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  How Does the Equation For a Circle Relate to Its Graph?

  The standard form equation for a circle can tell you quite a bit about the graph of that circle! Learn more about it with this tutorial.

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  What is a Tangent Line to a Circle?

  What does it mean when a line is tangent to a circle? In this tutorial, you'll learn what a line needs to do to be a tangent line to a circle.