## How do you solve linear programming problems graphically?

The Graphical Method

- Step 1: Formulate the LP (Linear programming) problem.
- Step 2: Construct a graph and plot the constraint lines.
- Step 3: Determine the valid side of each constraint line.
- Step 4: Identify the feasible solution region.
- Step 5: Plot the objective function on the graph.
- Step 6: Find the optimum point.

**Can all linear programming problems be solved graphically?**

After formulating the linear programming problem, our aim is to determine the values of decision variables to find the optimum (maximum or minimum) value of the objective function. Linear programming problems which involve only two variables can be solved by graphical method.

### How do you find optimal solution on a graph?

The largest or smallest value of the objective function is called the optimal value, and a pair of values of x and y that gives the optimal value constitutes an optimal solution. If an LP problem has optimal solutions, then at least one of these solutions occurs at a corner point of the feasible region.

**What is a graphical solution?**

We can solve such a system of equations graphically. That is, we draw the graph of the 2 lines and see where the lines intersect. The intersection point gives us the solution.

## What is the graphical method?

Graphical method, or Geometric method, allows solving simple linear programming problems intuitively and visually. This method is limited to two or three problems decision variables since it is not possible to graphically illustrate more than 3D.

**How many variables can used in graphical method?**

two

Graphical method can be used only when the decision variables is two.

### What is the graphical solution of a linear equation?

Graphical Method – on graph paper. Graphing a system of linear equations is as simple as graphing two straight lines. When the lines are graphed, the solution will be the (x,y) ordered pair where the two lines intersect (cross).