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Equation of a Circle
Grade Level
ACT Prep
ACTM.192 Equation of a Circle
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The endpoints of a diameter of a circle are (-4, 9) and (8, 3). Which equation represents the circle?
A
(x - 2)
2
+ (y - 6)
2
= 45
B
(x - 2)
2
+ (y - 6)
2
= 180
C
(x + 4)
2
+ (y - 9)
2
= 45
D
(x + 2)
2
+ (y + 6)
2
= 45
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