Algebra II Exercises: Writing the Equation of a Circle (When the Center and Radius are Given)

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Question Group #1

Directions and/or Common Information: Write the equation of the circle with the following centers and radius.

Center: (0, 9)
Radius: 4

1.

Center: (3, 2)
Radius: √4

2.

Center: (3, 5)
Radius: 2

3.

Center: (-7, -6)
Radius: √6

4.

Center: (-10, -1)
Radius: √8

5.

Center: (6, 10)
Radius: √2

6.

Center: (0, 0)
Radius: √7

7.

Center: (1, -8)
Radius: 9

8.

Center: (-7, -9)
Radius: 6

9.

Center: (3, -2)
Radius: 5

10.

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