The equations are and
.
Solve equation (1) for .
Consider .
Solve equation (2) for .
Consider .
The equation (2) can be written in quadratic form as .
Compare the equation with the standard form of quadratic equation .
, and
.
Solutions of the quadratic equation : .
.
Draw a coordinate plane.
\Graph the functions and
in the same window.
Graph :
\Observe the above graph :
\The two equations intersects at four points : ,
,
and
.
The intersection points are ,
,
and
.