Linear Programming ASAP

[minitine]

Are the vertices correct?

 

[Steven G]

Why are you investigating point C as it is not in the feasible region. Can you highlight the feasible region? If you think you have, then you are mistaken. Please try again.

 

[Dr.Peterson]

Are the vertices correct?

View attachment 24246

Does it say x+y=700 as you wrote, or x+y>=700 as you seem to have used?