The knowledge of such points is very useful in sketching the graph of
a given function Further, we will also find the absolute maximum and absolute minimum
of a function that are necessary for the solution of many applied problems (i)Let us consider the following problems that arise in day to day life The profit from a grove of orange trees is given by P(x) = ax + bx2, where a,b
are constants and x is the number of orange trees per acre