Note: if you cannot remember how to analyse linear programming problems using graphical methods, revise notes for 2.4 Graphical Method for Solving Linear Programming Problems.

### Integer Solutions for Linear Programming Problems

- When using graphical methods for solving linear programming problems, we are presented with a region which encompasses all possible solutions. If the decision variables are
**continuous**any point within this region it corresponds to a feasible solution. However, if we are dealing with**discrete**variables, only a finite number of points within this region will correspond to values the variables can actually take on. - If the region is
**sufficiently small**, it is possible for us to find**all**possible solutions for a linear programming problem with integer solutions.