You are Here: Home

Linear programming D1 (quick question) Tweet

Maths and statistics discussion, revision, exam and homework help.

Announcements Posted on
Enter our travel-writing competition for the chance to win a Nikon 1 J3 camera 20-05-2013
IMPORTANT: You must wait until midnight (morning exams)/4.30AM (afternoon exams) to discuss Edexcel exams and until 1pm/6pm the following day for STEP and IB exams. Please read before posting, including for rules for practical and oral exams. 28-04-2013
1. Linear programming D1 (quick question)
Our tutor has always told us to draw a small table to help find the constraints, however I find it easier to just read the text and write them down straight away. Will I lose marks for not drawing a table? Thanks.
2. Re: Linear programming D1 (quick question)
As long as the examiners can see your working clearly the format is not important

3. Re: Linear programming D1 (quick question)
Nice one thanks buddy
4. Re: Linear programming D1 (quick question)
The thing with reading them is you may not read the correct points.

Sometimes they expect you to find x amount of cars and y amount of bikes. You won't know where in the feasible region the optimal point is if your initial point that you got was wrong as your rounded up answer will also be wrong.

I recommend using simultaneous equations to find the points (which I'm sure you are familiar with).

After finding the points substitute them in and find the maximum or minimum cost (whichever they need you to do).

It also helps to draw an objective line as that way you don't have to test all points which could save time as the examiner will think you used your objective line to find the points, where in reality, you didn't.