Question

23.
If a be the radius of a circle which touches x-axis at the origin, then its equation is-
(A) x2 + y2 + ax = 0
(B) x2 + y 2 ya = 0
(C) x2 + y2 + 2xa = 0
(D) x2 + y2 + ya = 0

Answer 1

Answer:

x²+y²+ac=o is the right answer