Question

What are the characteris of a equation of a circle?​

Answer 1

Answer:

The equation of a circle with centre (a, b) and radius r is (x - a)2 + (y - b)2 = r2.

For example: the equation of a circle with centre (3, 0) and radius 4 units is (x – 3)2 + y2 = 16.

NOTE: The General Form of the equation of a circle is x2 + y2 + 2gx +2fy + c = 0.