Equation of the circle

1. 1. What is the equation of the circle center at the origin with radius of 15 units?

2. 2. What is the equation of the circle center at C(0,-5) with radius of 16 units?

3.What is the equation of the circle center at C(6,0) with radius of 9 units?

4.What is the equation of the circle center at C(-8,6) with radius of 10 units?

5.What is the equation of the circle in general form whose center lie at C(-3,4) with radius 7 units?

6.What is the equation of the circle in general form whose center lie at C(-8,3) with radius 8 units?

• A. C(-6, 2); r = 5

• B. C(6,-2); r=25

• C. C(6,-2); r=5

• D. C(-6, 2); r = 25

• A. C(-6,4) ; r = 5

• B. C(6,,-4) ; r = 5

9. 9. Which of the following represents the equation of a circle in general form?