1. 2x – 1 is (a) a linear equation for x, y, (b) an affine function

Hello, I’m taking a linear programming class and I have a previous exam with all the answers but I’d like to know the reason why these are the answers if anyone could explain step by step please

Connect with a professional writer in 5 simple steps

Please provide as many details about your writing struggle as possible

Academic level of your paper

Type of Paper

When is it due?

How many pages is this assigment?


Answers are in boldface




1. 2x –  1   is


(A) a linear equation for x, y, (B) an affine function of x,y,z,  (C) a linear form in x,


(D) a linear constraint for x,y, (E) none of the above.




2.   xy  is


(A) a linear constraint for x, y,  (B) a linear equation for x in standard form,


(C) an affine function of x, y,  (D) an equation which cannot be solved, (E) none of the above.




3. The linear program  2x+3y -> max subject to x+y=1


(A) is unbounded,  (B) is infeasible,  (C)  has many optimal solutions,


(D) has optimal value 3,   (E) none of the above.




4. The function  (x+z)/y  of x,y,z is


(A)   an affine function of x,y,z, (B)   a linear constraint for  x,y,z,


(C) an  equation,  (D) not defined for some  x,y,z, (E) none of the above.




5. The mathematical program x/y ->min subject to |x| ≤ 1, y > 0 for two unknowns x, y


(A) is a linear program, (B) is infeasible, (C) has an optimal solution,


(D) is unbounded, (E) is not a mathematical program.




6. The mathematical program  x -> max,  x < 1


(A) is a linear program, (B) is infeasible, (C) has an optimal solution,


(D) is unbounded, (E) none of the above.




7.The answer to the mathematical program 3x+4y -> max , x2+ y2    25 is


(A) max= 25  at x = 3,  y = 4,  (B) max = 30  at x = 4, y, = 3 (C) max = 50 at x = 5, y =5,


(D) min =-25 at x = -3, y =–4, ( E) none of the above.




8. The minimal total cost for the job assignment problem


3              2              1              4


3              0              2              1


2              5              3              6


3              0              1              1


is    (A) 4,  (B) 6,  (C) 7, (D) 8, (E) none of the above.




9. For each  number  t, the equation     tx= cos(t)  for unknown x


(A) is not linear, (B) has a solution, (C) is a linear equation, (D) has many solutions,  (E) none of the above.




10. 0 ≤ 0 provided that x > 1.   A) True B) False




11.If x > 0 and  y > 0 then xy > 0.   A) True B) False




12. x > 0 only if x  ≥ 2.   A) True B) False




13. The linear program given by the  standard tableau


x1            x2            x3            x4            1               


1              -2             0              3              0              =x5


-4             0              2              0              1              =x6


0              1              0          2         -3      -> min


(A) is infeasible, (B) is unbounded,  (C) has an optimal solution,


(D) has only 2 linear constraints, (E)  none of the above.








14.  The linear program given by the standard tableau


x1            x2            x3            x4            1               


1              2              0              3              0              =x5


4              0              -2             0              1              =x6


0        -1   0              2              -3             -> min


(A) is infeasible, (B) is unbounded., (C) has an optimal solution,


(D) requires at least one pivot step to solve by simplex method.




15. The linear program given by the standard tableau


x1            x2            x3            x4            1               


1              2              0              3              0              =x5


0              0              0              0         -1 =x6


0              -1             0              2         -3 -> min


(A) is infeasible, ( B) is unbounded, (C) has an optimal solution,


(D) has -3 as the optimal value, (E) has only one feasible solution.




16. The standard tableau


x1            x2            x3            -1              


0              0              0              0              -> min


(A) is optimal, (B) has a bad column, (C) has a bad row, (D) is not standard, (E) none of the above.




17. The standard tableau




-1             = x1


0              =x2


-1             -> min


(A) is optimal. (B) has a bad column, (C) has a bad row, (D) is not standard, (E) is too small.




18. Pivoting the tableau


x              y               


2*            3              = -z


produces the tableau


A) -z    y               B)  x          y 


   1/2        -3/2          = x               2           -3/2        = z


C) x         y                          D) z             y                          E) x             y             


  1/2         3              = z          1/2            3/2           =x          1/2             -3/2          = z




19. The linear program x+y -> max, x≤  -1, y ≤ – 2


A) is infeasible. B) is unbounded. C) has an optimal solution.


D) has infinitely many optimal solutions. E) has -3 as the optimal solution.




20.The equation  x4+ y4  = 0 for x, y


A) has no solutions,  B) has exactly one solution, C) has infinitely many solutions.




21.The system x+ 2y = 3, 4x + 7y = 0 for x,y


A) has no solutions. B) has exactly one solution. C) has infinitely many solutions.




22. The set of constraints x + y > 2, 2x + 3y > 4 implies that


A) 4x + 5y ≥  10,  B) x ≥ 0,   C) y ≥ 1,   D) x ≤ 0,   E) none of the above.




23. Unless said otherwise, a number in this course means a real number.  A) True B) False




24. A standard tableau  with a bad row cannot  be feasible   A) True   B)False




25. Any linear program given by a standard tableau with a bad column is unbounded.  


A) True  B) False

Order a unique copy of this paper
(550 words)

Approximate price: $22

Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our Guarantees

At 111papers.com, we value all our customers, and for that, always strive to ensure that we deliver the best top-quality content that we can. All the processes, from writing, formatting, editing, and submission is 100% original and detail-oriented. With us, you are, therefore, always guaranteed quality work by certified and experienced writing professionals. We take pride in the university homework help services that we provide our customers.

Money-Back Guarantee

As the best homework help service in the world, 111 Papers ensures that all customers are completely satisfied with the finished product before disbursing payment. You are not obligated to pay for the final product if you aren’t 100% satisfied with the paper. We also provide a money-back guarantee if you don’t feel that your paper was written to your satisfaction. This guarantee is totally transparent and follows all the terms and conditions set by the company.

Read more

Zero-Plagiarism Guarantee

All products that we deliver are guaranteed to be 100% original. We check for unoriginality on all orders delivered by our writers using the most advanced anti-plagiarism programs in the market. We, therefore, guarantee that all products that we submit to you are 100% original. We have a zero-tolerance policy for copied content. Thanks to our strict no plagiarized work rule, you can submit your homework to your professor without worrying.

Read more

Free-Revision Policy

TThis is one of the most cherished courtesy services that we provide to help ensure that our customers are completely satisfied with our finished products. Delivering the best final product to our customers takes multiple inputs. 111papers.com prides itself on delivering the best university homework help services in the writing industry. And, in part, our free revision policy is how we do it. What’s more, all our revisions are 100% free without any strings attached.

Read more

Privacy Policy

Client privacy is important to use. We know and understand just how important customers value their privacy and always want to safeguard their personal information. Thus, all the information that you share with us will always remain in safe custody. We will never disclose your personal information to any third party or sell your details to anyone. 111 Papers uses the most sophisticated, top-of-the-line security programs to ensure that our customers’ information is safe and secured.

Read more

Fair-Cooperation Guarantee

Placing your order with us means that you agree with the homework help service we provide. We, in turn, will endear to ensure that we do everything we can to deliver the most comprehensive finished product as per your requirements. We will also count on your cooperation to help us deliver on this mandate. Yes, we also need you to ensure that you have the highest-quality paper.

Read more

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
The price is based on these factors:
Academic level
Number of pages