Question

Select the correct answer

What is the general form of the equation of a circle with center at (a, b) and radius of length m?
A. x2 + y2 - 2ax – 2y + (a+ b2 - m2) = 0
'B.
x2 + y2 + 2ax + 2by + (a2 +62 – m2) = 0
C. x2 + y2 - 2ax - 2by + (a + b - m2) = 0
x2 + y2 + 2ax + 2by + a2 + b2 = -m2
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Answer 1

option d is right

Explanation:

x2+y2+2ax+2by+a2+b2=-m2

I thinks it's right