Written+assignment+4 - market Often the demand equation is...

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Mat 117 Dr. Yelena White Week 8 Written Assignment 4 Answer the following questions. First, save this file to your hard drive by selecting Save As from the File menu. Click the white space below each question to maintain proper formatting. Use Equation Editor to write mathematical expressions and equations. Show your work (calculations and explanation) for every problem. The credit will not be given if work is not shown. Problem #1 (10 points) Construction. The base of a 15-ft ladder is 5 ft away from a wall. How far above the floor is the top of the ladder? Problem #2 (40 points) Business and finance. A demand equation (sometimes called a demand curve) shows how much money people would pay for a product depending on how much of that product is available on the open
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Unformatted text preview: market. Often, the demand equation is found empirically (through experiment, or market research). The demand equation for a certain type of printer is given by: D = - 200 p + 35,000 The supply equation is predicted to be: S = - p 2 + 400 p -20,000 (a). Does the graph of the supply equation open up or down? How did you determine this? (b). What is the point of the vertex of the supply equation? (c). How many solutions are there to the supply equation ? How do you know? (d). Find the equilibrium price (Hint: The equilibrium price is the price for which supply equals demand). Do not use graphing calculator to solve equations. Use the quadratic formula method and show your work. 1...
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This note was uploaded on 11/01/2011 for the course MAT 117 taught by Professor Al-kofahi during the Spring '09 term at University of Phoenix.

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