Key for sample exam 1 C

there may have been typos in this exam. you should look to be able to solve each kind of problem.
  1. C
  2. A
  3. B
  4. D
  5. C
  6. B
  7. D
  8. A
  9. D
  10. B
  11. C
  12. C
  13. D
  14. A
  15. D
  16. B
  17. D 


Work-out 1:

x = number of batches of cakes each day

y = number of batches of cookies each day

maximize R=50x+35y

subject to  2x+1.5 less than or equal to 15 (over hours per day)

            3x + .75 y less than or equal to 13 (decorating hours per day)
            
            x, y greater than or equal to 0 (non-negativity)
            
            
Work-out 2:

draw axes.  the feasible region is the region inside the figure bounded by

(2,0), (4,0), (4.8,1.2) and (2,4)