Final answer:
The maximum revenue at the optimal solution is obtained by graphically solving the constraints 8x + 5y ≤ 40 and 4x + y ≥ 8, finding the intersecting corner point, and substituting these x and y values into the revenue equation $15x + $20y.
Step-by-step explanation:
To find the maximum revenue at the optimal solution using graphical methods, we need to identify the corner point where the two constraints intersect. The constraints given are 8x + 5y ≤ 40 and 4x + y ≥ 8.
- Graph the constraints on a coordinate plane, marking the feasible region defined by the inequalities.
- Identify the corner points of the feasible region.
- Calculate the objective function, which is the revenue $15x + $20y, at each corner point.
The optimal solution occurs at the intersection of the two constraints. To find the intersection, we can solve the system of equations:
8x + 5y = 40
4x + y = 8
By solving these equations simultaneously, we would find the values of x and y that give us the intersecting point. Once we have x and y, we substitute these into the objective function $15x + $20y to find the maximum revenue.
Assuming we have solved the equations and found the intersection point to be, for example, (x,y), the maximum revenue is calculated as $15x + $20y.