a$)$ Solve the model using the graphical solution approach.

Max,$6x_1+8x_2$

Subject $to$

$,15x_1+10x_{2}150$

$,10x_1+20x_{2}220$

$,x_{2}10$

$,x_1,x_{2}0$

b$)$ Which of the constraints $($Cons$1,$ Cons$2,$ and Cons$3)$ are binding? Show why it is

binding.

c$)$ Which of the above constraints has a slack or surplus? And how much? Show your

calculations.