01GottIntro_appenShow

01GottIntro_appenShow - If X = 30, Y = ? If X = 100, Y = ?...

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Appendix 1 Math and Graph Skills
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2 Two variables Personal Expenditure Annual Income $1,000 $2,000 $3,000 $4,000 $10,000 $20,000 $30,000 $40,000 Direct relationship Independent variable? Dependent variable?
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3 4 3 2 1 10 20 30 40 A B C D Y=1 X=10 Pers. Exp. X Direct relationship Annual Income Slope?
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4 Price per DVD Quantity of DVD $20 $15 $10 25,000,000 50,000,000 75,000,000 $5 100,000,000 Inverse relationship ( Ceteris paribus ) Independent variable? Dependent variable?
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5 20 15 10 5 25 50 75 100 A B C D Y= - 5 X=25 INVERSE Relationship Q P
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6 4 3 2 1 10 20 30 40 B C Y=1 X=10 X Slope? Y intercept (or vertical intercept) Y
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7 Equation of linear equation Y = a + b (X) Y intercept slope Equation for previous graph? Y = 1 + 0.1 X
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Unformatted text preview: If X = 30, Y = ? If X = 100, Y = ? 8 Expenditure for Toothpaste at Different Annual Incomes Expenditure Toothpaste Annual Income $ 20 $ 20 $ 20 $ 20 $10,000 $20,000 $30,000 $40,000 Inverse or direct? 9 40 30 20 10 10 20 30 40 A B C D Y=0 X=10 Expend. Toothpaste Independent relationship Annual Income 10 4 3 2 1 10 20 30 40 A B C D Y X Movement ALONG a curve 11 20 15 10 5 25 50 75 100 Annual Income $60,000 Annual Income $30,000 Quantity demanded Price SHIFT of curve: caused by in 3 rd variable. Relax ceteris paribus...
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This note was uploaded on 07/14/2010 for the course ECON 1 taught by Professor Bergstrom during the Fall '07 term at UCSB.

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01GottIntro_appenShow - If X = 30, Y = ? If X = 100, Y = ?...

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