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Homework Help: Why am I wrong? This contour is buggin me

  1. Sep 19, 2011 #1
    1. The problem statement, all variables and given/known data

    [PLAIN]http://img88.imageshack.us/img88/4160/unledmbh.png [Broken]

    So my revenue function is R(d,c)

    At R(100, 100) = 2000

    At R(50,300) = 4000

    Now R(d,c) was given (got cut off in the picture) to be linear

    So I believe

    R(100,100) = 100d + 100c = 2000
    R(50, 300) = 50d + 300c = 4000

    I got two equations, two unknowns.

    Solving I get

    d = 8 and c = 12

    Now the answer has the answers swapped, i.e. c = 8, d = 12
    Last edited by a moderator: May 5, 2017
  2. jcsd
  3. Sep 19, 2011 #2
    never mind, I was the one who took R(d,c) instead of R(c,d)
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