POLQ 3 | Lesson 4 | Solutions (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.


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