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. x^2 + y^2 - 2ax - 2by + (a^2 + b^2 - m^2) = 0

B. x^2 + y^2 + 2ax + 2by + (a^2 + b^2 - m^2) = 0

C. x^2 + y^2 - 2ax - 2by + (a + b - m^2) = 0

D. x^2 + y^2 + 2ax + 2by + a^2 + b^2 = -m^2

Answer 1

C I think because 2ax and 2by we would need to combine by add/subtracting the number S 2 and 1