Back to Practicemedium • Past Paper

The equation of a circle whose endpoints of a diameter are (x1, y1) and (x2, y2) is:

A(x-x1)(x-x2) + (y-y1)(y-y2) = 0

B(x-x1)^2 + (y-y1)^2 = r^2

Cx^2 + y^2 = r^2

D(x+x1)(x+x2) + (y+y1)(y+y2) = 0