Chapter 9 Quadratic Relations and Conic Sections - 9.3 Graph and Write Equations of Circles - 9.3 Exercises - Quiz for Lessons 9.1-9.3 - Page 632: 13

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There are two ways to graph a function. First of all, we could recognize, based on the form that the equation is in, what the shape and location of the graph will be. However, it can often times be easier to plot points in order to see the shape of the graph, allowing us to create the overall graph. Thus, the radius of the circle is: $$2$$