# 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.