A circle is a set of all points on a plane that are fixed distance from a center.

Standard form of the circle is , where is center  is radius.

Graph a circle just two steps.

and are the and coordinates of the center of the circle.

1). Plot the center in a coordinate plane.

2). Plot the radius points on the coordinate plane.

Consider the circle using center and radius.

Rewrite the equation as .

Compare with .

Center  and radius . 

Find four points " radius away from the center in the up, down, left and right direction".

Up , down , left and right .

Graph :

Draw a coordinate plane.

1). Plot the center at .

2). Plot four points " radius away from the center in the up, down, left and right direction".

3). Sketch the circle.

Graph the circle with center and radius is