1.

What would be the shape of the demand curve so that the total revenue curve is (a)A positively sloped straight line passing through the origin ? (b) A horizontal line ?

Answer»

Solution :(a) When TR curve is a positively sloping straight line passing through the origin DEMAND curve (or piece line) will be horizontal . It is SHOWN in the given figure : The reason is that demand curve is also the PRICE line. When TR is a straight positively sloped line, price at each level of output is CONSTANT.
(b) When TR is a horizontal line, demand curve is a rectangular HYPERBOLA. It is shown :

The reason is that, the price at each level of output declines.


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