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    Point elasticity…I don’t understand the derivative part…

    OK, If I have Q = 100 – p^2


    Assuming p1 = 5, then Q = 75, my book says that the point elasticity is equal to:


    -2P X 5/75, but what I don’t understand is where the -2P came from. Can someone make this clear in a step


    By step way? 

    +1  Views: 1262 Answers: 1 Posted: 12 years ago
    Tags: economics

    1 Answer

    Try this excellent explanation>>>http://www.masterit.ie/elasticity/point.htm



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