1. Warmup
Find the distance between the point (x, y) and the point (h, k).

2. Write equations of circles. Graph circles.
Supplement 2 Circles
Write equations of circles.
Graph circles.

3. Circle: the set of all points in a plane that are equidistant from a given point in the plane, called the center.
Any segment with endpoints at the center and a point on the circle is called a radius of the circle

4. Write an equation for the circle with given center and radius
Write an equation for the circle with given center and radius. (Supp 2A #5)

5. Write an equation for the graph.

6. Write an equation for the circle given the endpoints of a diameter
Write an equation for the circle given the endpoints of a diameter. Supp 2A #8

7. Find the center and radius of the circle. Then graph. Supp 2A #17

8. Find the center and radius of the circle. Then graph. Supp 2A #18

9. Write an equation for the circle that satisfies this condition
Write an equation for the circle that satisfies this condition. Supp 2A #12