ps1 - UNIVERSITY OF WISCONSIN Economics 101 Fall 2005 Wei...

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UNIVERSITY OF WISCONSIN Economics 101 – Fall 2005 Wei Zhang Problem Set 1 Due by September 12, 2005 (in class) Please be sure to include (1) your name, (2) your teaching assistant’s name, and (3) your section time on your answers. Please staple pages together. Also note that late homework will not be accepted. Math Review: This problem set is designed to refresh your graphing and algebraic skills, which will be used intensively in the course. If you have a great deal of difficulty with this material, please speak with your teaching assistant as soon as possible. 1. a) Graph the line given by the equation y =10-2x, with y on the vertical axis. b) What is the slope of this line? What would be the slope if you put x on the vertical axis? c) Are x and y positively or negatively related? d) On the same graph, show the line given by the equation y =12 - 3x. e) What is the slope of this line? Is this line steeper or flatter than the first?
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