Arestaurant offers two different kinds of soup and three different kinds of salad.
(a) if you are having either soup or salad, how many choices do you have?

(b) if you are having both soup and salad, how many choices do you have?

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