The standard form of a circle equation is
, where center
and radius
.
The circle equation is
. \ \
Convert the given circle equation into standard form.
.




Compare it with standard form of circle.
\
and
.
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 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.
\
The circle equation is 
Find the intercepts.
\First find the
-intercept, by substituting
in the original equation.




Solve for
.
Take square root each side.
\

or 
or 
-intercepts are
and
.
Next find the
-intercept, by substituting
in the original equation.




Solve for
.
Take square root each side.
\

The
-intercepts are
and
.
Center
and radius
.
The circle graph:
Intercepts are
and
.