Develop a linear programming model for this Nissan production problem. Solve this

model using the graphical method. Report your optimal solution and objective function

value.

$($ b $)$ ?The manager wishes to produce more NV $200$ ?cars under the optimal solution. She

wonders what the minimum profit must be $($ per unit of the NV $200$ ?model $)$ ?such that it

is optimal to produce at least one more unit of NV $200$ ?compared to the solution of Part

$($ a $).$