Question

What is the general form of the equation of a circle with center at (a, b) and radius of length m?

x2 + y2 − 2ax − 2by + (a2 + b2 − m2) = 0

x2 + y2 + 2ax + 2by + (a2 + b2 − m2) = 0

x2 + y2 − 2ax − 2by + (a + b − m2) = 0

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

Answer 1

@ganeshie8

Answer 2

by definition, a circle whose center is C=(a,b) and whose radius is r, is given by the subsequent formula:
\[{\left( {x - a} \right)^2} + {\left( {y - b} \right)^2} = {r^2}\]

Answer 3

So would it be C

Answer 4

@Michele_Laino

Answer 5

sorry, I don't think it is C