[請益] 消費者剩餘

[ingrid6565 (七寶好可愛阿~~愛死牠了!)]

題目:Assume that the market demand of good x ,produced by a monopoly
     firm A, is x(p)=200-10‧p^(1/2)
     (1)Derive the marginal revenue function(MR) for firm A.
     (2)Firm A sells good x at 100 per unit. Calculate the consumer's
        surplus.
     我算出來的MR是:400-8x+3x^2/100
     請問第二題的每單位100那是什麼意思? 然後消費者剩餘是用積分求出嗎?

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推 daniel955377:100是價格吧
推 vinousred:每單位價格皆是一百元