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Dear all,
Can anybody please explain the 2nd question on June 2008 paper, why the product Snooker cues should be the horizontal axis and Pool cues should be the vertical axis? And what is the theory underlying in deciding which should be vertical axis and which should be horizontal?
There is no theory but it’s important you don’t get confused.
Normal convention with the format X+Y=Constant puts X on the horizontal axis and y on the vertical, so it’s easier when you construct your linear programming equations to follow this convention. So if you write the equations Snooker + Pool = Constant put Snooker on the horizontal – to prevent confusion
But regardless you should end up with the same decision point, the same two equations in your linear programming solution and the same answer.
I am afraid I did not get you,
Let me elaborate:-
The question given:-
Pool Ques Snooker ques
.50 .75
.270 .270When I formulate the constraints , I tend to from equtions as follows:
0.50x + 0.75y
which is not the case here,the right one is 0.75x+.50y!!
When pool cues appeared first and snooker second I took it as .50x+.75y which not correct.
So my question is why Snooker is to be considred X and pool Y?
Sthjyot,
I’d say plot the graph the way you normally do. On x- axis we put variables which are independent and on y-axis, variables which are dependent.
Technically your answer wouldn’t be taken as a wrong one if you chose to plot snooker on the either of the axis.
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