Find the Absolute Extrema of the Function $$f ( x , y ) = 2 x + 3 y - 5$$

Short Answer

Find the absolute extrema of the function
$$f ( x , y ) = 2 x + 3 y - 5$$
on the closed triangular region with vertices $( 0,0 ) , ( 5,0 )$ , and $( 5,4 )$ .