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

Observe the graph:
\The coordinates are
and
.
The equations are
and
.
Solve the equations.
\
(First equation)
(Substitute
)
(Apply distributive property:
)
(Subtract
from each side)
(Apply additive inverse property:
)
(Add
to each side)
(Apply additive inverse property:
)
(Divide each side by
)
(Cancel common terms)
Find
.
(Second equation)
(Substitute
)
(Multiply)
(Subtract:
)
Check:
\Compare the coordinates to the coordinates on the graph.
\The
-coordinate of the third vertex is between
and
, So
is reasonable.
The
-coordinate of the third vertex is between
and
, So
is reasonable.
The vertices of the triangle are at
,
and
.
Graph of the inequalities are
,
and
is

The vertices of the triangle are at
,
and
.