The coordinates of the vertices of a rectangle are (–2, 3), (4, 3), (4, –4), and (–2, –4). what are the dimensions of the rectangle?

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints