Macroeconomics
11th Edition
ISBN: 9781260506891
Author: Colander
Publisher: MCG
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Question
Chapter 2.A, Problem 7QE
(a)
To determine
Demonstrate the equation when the slope changes.
(b)
To determine
Demonstrate the shift in curve in the equation.
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Draw the graph of U = q1 + aq2 and U= q1^2 + q2^2. Interpret the parameter and shape of the curve.
1. Solve the following problem by using Excel for graph sketching.
A soda vendor at Louisiana State University football games observes that more sodas
are sold the warmer the temperature at game time is. Based on 32 home games
covering five years, the vendor estimates the relationship between soda sales and
temperature to be y = -240 + 8x, where y = the number of sodas she sells and .x =
temperature in degrees Fahrenheit,
(a) Interpret the estimated slope and intercept. Do the estimates make sense? Why,
or why not?
(b) On a day when the temperature at game time is forecast to be 80°F, predict how
many sodas the vendor will sell.
(c) Below what temperature are the predicted sales zero?
(d) Sketch a graph of the estimated regression line.
The line in the graph shows a relationship between two variables, x and y.
What is the slope of the curve?
...
The slope of the curve is
>>> If the slope is negative, use a minus sign. If the slope is positive, do not use a plus
sign.
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7
5-
4-
3-
2-
1-
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1
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Chapter 2 Solutions
Macroeconomics
Ch. 2.1 - Prob. 1QCh. 2.1 - Prob. 2QCh. 2.1 - Prob. 3QCh. 2.1 - Prob. 4QCh. 2.1 - Prob. 5QCh. 2.1 - Prob. 6QCh. 2.1 - Prob. 7QCh. 2.1 - Prob. 8QCh. 2.1 - Prob. 9QCh. 2.1 - Prob. 10Q
Ch. 2.A - Prob. 1QECh. 2.A - Prob. 2QECh. 2.A - Prob. 3QECh. 2.A - Prob. 4QECh. 2.A - Prob. 5QECh. 2.A - Prob. 6QECh. 2.A - Prob. 7QECh. 2.A - Prob. 8QECh. 2 - Prob. 1QECh. 2 - Prob. 2QECh. 2 - Prob. 3QECh. 2 - Prob. 4QECh. 2 - Prob. 5QECh. 2 - Prob. 6QECh. 2 - Prob. 7QECh. 2 - Prob. 8QECh. 2 - Prob. 9QECh. 2 - Prob. 10QECh. 2 - Prob. 11QECh. 2 - Prob. 12QECh. 2 - Prob. 1QAPCh. 2 - Prob. 2QAPCh. 2 - Prob. 3QAPCh. 2 - Prob. 4QAPCh. 2 - Prob. 5QAPCh. 2 - Prob. 1IPCh. 2 - Prob. 2IPCh. 2 - Prob. 3IPCh. 2 - Prob. 4IPCh. 2 - Prob. 5IPCh. 2 - Prob. 6IP
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Similar questions
- Calculate the slope and vertical intercept of the line that goes through the points described in the table below. 9 9 X y 0 72 vertical intercept = slope = 1 65 2 58 3 51 4 44 5 37 6 30 7 23 8 16arrow_forwardThe table gives information about the relationship between two variables, x and y. The relationship between x and y is ______ and the slope of the relationship ______ as x increases. x 2 4 6 8 10 y 196 192 188 184 180arrow_forwardIn the accompanying graph, is the slope of curve A A' positive or negative? Does the slope increase or decrease as we move along the curve from A to A'? Answer the same two questions for curve BB'.arrow_forward
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