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Find the Center and the Radius of the Circle x2+y2−18x+6y+54=0x ^ { 2 } + y ^ { 2 } - 18 x + 6 y + 54 = 0

Question 80

Multiple Choice

Find the center and the radius of the circle.
- x2+y2−18x+6y+54=0x ^ { 2 } + y ^ { 2 } - 18 x + 6 y + 54 = 0


A) center (−9,3) ( - 9,3 ) , radius =36= 36
B) center (9,−3) ( 9 , - 3 ) , radius =6= 6
C) center (−3,9) ( - 3,9 ) , radius =6= 6
D) center (3,−9) ( 3 , - 9 ) , radius =36= 36

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