$\"\"$

The system of inequalities are $\"\"$ .

The objective function is $\"\"$ .

Graph:

Graph the inequalities and locate the vertices:

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Observe the graph:

The vertex points are $\"\"$ , $\"\"$ and $\"\"$ .

$\"\"$

Evaluate the objective function for each vertex.

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \

Observe the table:

The maximum value is $\"\"$ at $\"\"$ , and the minimum value is $\"\"$ at $\"\"$ .

$\"\"$

The maximum value is $\"\"$ and minimum value is $\"\"$ .