(152,−252)
(32,−52)
(−32,52)
(−152,252)
Correct answer is B
Equation for a circle: (x−a)2+(y−b)2=r2
Expanding, we have:
x2−2ax+a2+y2−2by+b2=r2
Given: 5x2+5y2−15x+25y−3=0
Divide through by 5,
=x2+y2−3x+5y−35=0
Comparing, we have
−2a=−3;a=32
−2b=5;b=−52
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