1. Chapter 10
10.8 Equations of Circles

3. A. Write the equation of the circle with a center at (3, –3) and a radius of 6.

4. A. Write the equation of the circle with a center at (2, –4) and a radius of 4.

5. B. Write the equation of the circle graphed to the right.

6. B. Write the equation of the circle graphed to the right.

7. A. Write the equation of the circle that has its center at (–3, –2) and passes through (1, –2).

8. A. Write the equation of the circle that has its center at (–1, 0) and passes through (3, 0).

9. B. Write the equation of the circle graphed to the right.

10. B. Write the equation of the circle graphed to the right.

11. The equation of a circle is
(x – 2)2 + (y + 3)2 = 4. State the center and the radius. Then graph the equation.

12. Name the center and the radius of the following then graph x2 + (y – 5)2 = 25?