Writing in Center-Radius Form

Solutions:

1) \((x-5)^2+(y+2)^2 = 12\)

Center is at \((5, -2)\) and the radius is \(2\sqrt{3}\)

2) \((x-4)^2+(y-12)^2 = 16\)

Center at \((4, 12)\) and radius is 4

3) \((x+2)^2+(y+3)^2 = 25\)

Center is at \((-2, -3)\) and the radius is 5

It should be much easier to graph a circle using center-radius form since those two pieces of information are all that are needed to draw a circle..

*Graphs are created using Desmos.com.*

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