The system of inequalities are
,
and
.
Rewrite the system of inequalities are
,
and
.
Graph:
\Graph the inequalities are
,
and
:

Observe the graph:
\The coordinates are
and
.
\ \
Solve the equations
and
.
(First equation)
(Substitute
)
(Subtract
from each side)
(Additve inverse property:
)
(Subtract
from each side)
(Additve inverse property:
)
(Multiply each side by
)
(Cancel common terms)
Find
.
(Second equation)
(Substitute
)
(Multiply)
(Subtract:
)
(Simplify)
The vertices of the triangle are
,
and
.
Graph of the inequalities are
,
and
is \ \

The vertices of the triangle are
,
and
.