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2011年ACCA考试《F5业绩管理》讲义(39)

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发表于 2012-2-23 17:09:42 | 显示全部楼层 |阅读模式
4 straight-line demand equation   the equation of a straight line demand curve is represented by the following equation:

Illustration 5 – Straight-line demand equation
  Required:www.Examw.com
  Find the linear relationship between price (P) and the quantity demanded (Q) in relation to the following sales and demand data:
  § Selling price of $200 = sales of 1,000 units per month
  § Selling price of $220 = sales of 950 units per month.
  Solution
  § b (gradient) =
  = -0.4
  § remembering that price (P) = 200 when 1000 units are sold and substituting 2 0.4 for b
  § 200 = a 2 (0.431,000)
  § 200 = a 2 400
  § a = 200 + 400 = 600
  § so the equation is: P = 600 – 0.4Q
  Test your understanding 3来自www.Examw.com
  Finding the linear relationship between price (P) and the quantity demanded (Q) in relation to the following sales and demand data:
  § Selling price of $300 = sales of 500 units per month
  § Selling price of $330 = sales of 400 units per month.
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