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Hello sir,
Since plotting an iso-contribution line can help us quickly locate which point of the feasible region will generate maximum contribution, is it permissible to assume a “reasonable figure” for deriving C? Since the other part of the constraint will be given.
Or do we have to solve all the feasible region points using simultaneous equations? In your video, we simply assumed a figure for the purpose of plotting the iso-contribution line
You certainly do not have to solve all the feasible region points!!!
You are expected to do what I do in the lecture – assume a figure for contribution in order to know the angle of the line.
(Given the change in the exam format, it is now unlikely that you would actually be required to draw the graph. However what can happen (and has happened before) is that you are given the graph in the exam with the iso-contribution line on it, and you are expected to prove you know how to use it.)
how do we know which point is maximizing contribution the most? i watched your lecture twice but couldn’t get it. i understand the contribution line thing. after that how do we know that at point b contribution maximize?
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