The standard form of a circle equation is , where center and radius .

The circle equation is .

Rewrite the equation as .

Compare it with standard form of circle.

and radius .

Graph the circle 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 .

Draw the 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.

.

The circle equation is

Find the intercepts.

First find the -intercept, by substituting in the original equation.

Solve for .

Take square root each side.

-intercepts are .

Next find the -intercept substituting in the original equation.

Solve for .

Take out common factors.

  or

  or

-intercepts are and .

Center and radius .

The circle graph:

Intercepts are and .