1.
What are the coordinates of the center of a circle defined by the equation
(
x
+ 3)
2
+ (
y
+ 2)
2
= 9?
A.
(3,2)
B.
(-3,-2)
C.
(-2,-3)
D.
(2,3)
Hint
2.
Graph the equation (
x
- 2)
2
+ (
y
+ 3)
2
= 4 on a coordinate plane.
A.
B.
C.
D.
Hint
3.
Write the equation of a circle with center (4, -6) and diameter of 18 units.
A.
(
x
- 4)
2
+ (
y
+ 6)
2
= 81
B.
(
x
- 4)
2
- (
y
- 6)
2
= 324
C.
(
x
- 4)
2
+ (
y
- 6)
2
= 81
D.
(
x
- 4)
2
+ (
y
+ 6)
2
= 324
Hint
4.
Find the diameter of a circle defined by the equation
(
x
+ 4)
2
+ (
y
- 16)
2
= 192. Express in simplest form.
A.
96
B.
C.
D.
Hint
5.
Which graph is the correct graph for a circle defined by the equation
(
x
+ 3)
2
+ (
y
- 4)
2
= 9?
A.
B.
C.
D.
Hint