$\"\"$

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

The function is $\"\"$ .

Evaluate the 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 $\"\"$ .