$\"\"$

The vertices are $\"\"$ and $\"\"$

The function is $\"\"$ .

Evaluate the function for each vertex.

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

Observe the table:

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

$\"\"$

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