Question 1

The slope of a straight line is the ratio of the:

Accepted Answer

A) vertical change to the horizontal change. 
B) horizontal change to the vertical change. 
C) run over the rise. 
D) vertical change to the horizontal change, and it must be positive. 
A) vertical change to the horizontal change. 
B) horizontal change to the vertical change. 
C) run over the rise. 
D) vertical change to the horizontal change, and it must be positive. A

Question 2

Use the following to answer questions:  
-(Table: Wages and Hours Worked) Look at the table Wages and Hours Worked. Graphing the relation with wages on the vertical axis and hours worked on the horizontal axis, the slope between point D and point E is:

Accepted Answer

A) 0.5. 
B) 5. 
C) 45. 
D) 2. 
A) 0.5. 
B) 5. 
C) 45. 
D) 2. D

Question 3

Use the following to answer questions :
Figure: Hot Drinks Sold and Temperature  
-(Figure: Hot Drinks Sold and Temperature) Look at the figure Hot Drinks Sold and Temperature. If we move from point J to point L in the figure, the outside temperature has ______ degrees and the number of hot drinks sold has ______.

Accepted Answer

A) decreased by 30; increased by 30 
B) increased by 20; decreased by 20 
C) increased by 30; decreased by 30 
D) increased by 40; decreased by 40 
A) decreased by 30; increased by 30 
B) increased by 20; decreased by 20 
C) increased by 30; decreased by 30 
D) increased by 40; decreased by 40 D

Question 4

Use the following to answer questions :
Figure: Slope  
-(Figure: Slope) Look at the figure Slope. In the graph, the slope of the line between points A and B is:

Accepted Answer

A) +8. 
B) -8. 
C) -2. 
D) +2. 
A) +8. 
B) -8. 
C) -2. 
D) +2.

Question 5

In looking at a chart of the positive relationship between police officers and crime, the mayor remarks that more police officers cause more crime. The mayor may be wrong because she did not consider:

Accepted Answer

A) the features of construction. 
B) omitted variables. 
C) reverse causality. 
D) tangent lines. 
A) the features of construction. 
B) omitted variables. 
C) reverse causality. 
D) tangent lines.

Question 6

Two points on a nonlinear curve have coordinates given by (5, 15) and (17, 13). The average slope of the curve between these points is:

Accepted Answer

A) -1/6. 
B) -6. 
C) 1/4. 
D) 2.5. 
A) -1/6. 
B) -6. 
C) 1/4. 
D) 2.5.

Question 7

The ratio of the change in the variable on the vertical axis to the change in the variable on the horizontal axis, measured between two points on the curve, is the:

Accepted Answer

A) axis. 
B) slope. 
C) dependent variable. 
D) independent variable. 
A) axis. 
B) slope. 
C) dependent variable. 
D) independent variable.

Question 8

If two variables are negatively related:

Accepted Answer

A) as one goes up in value, the other must go up in value, too. 
B) as one goes up in value, the other must go down in value. 
C) there can never be a trade-off between the two. 
D) one variable is always the reciprocal of the other. 
A) as one goes up in value, the other must go up in value, too. 
B) as one goes up in value, the other must go down in value. 
C) there can never be a trade-off between the two. 
D) one variable is always the reciprocal of the other.

Question 9

If two variables are positively related:

Accepted Answer

A) as one goes up in value, the other must go up in value, too. 
B) as one goes up in value, the other must go down in value. 
C) there is always a trade-off between the two. 
D) one variable is always the reciprocal of the other. 
A) as one goes up in value, the other must go up in value, too. 
B) as one goes up in value, the other must go down in value. 
C) there is always a trade-off between the two. 
D) one variable is always the reciprocal of the other.

Question 10

Taylor sees a bar graph showing the average weight of adult males over the past 200 years and concludes that men get more obese over time. Taylor's conclusion may be wrong, since she did not consider:

Accepted Answer

A) the features of construction. 
B) omitted variables. 
C) reverse causality. 
D) tangent lines. 
A) the features of construction. 
B) omitted variables. 
C) reverse causality. 
D) tangent lines.

Question 11

Use the following to answer questions :
Figure: Consumption of Pizza and Tacos  
-(Figure: Consumption of Pizza and Tacos) Look at the figure Consumption of Pizza and Tacos. The figure shows the number of tacos and pizza slices Matt can eat in a day. The best estimate of the slope between point A and point B is -4.

Accepted Answer

A) True 
 B)False

Question 12

Use the following to answer questions :
Figure: Good X and Good Y  
-(Figure: Good X and Good Y) Look at the figure Good X and Good Y. If we move from point B to point C in the figure, the x-variable has ______ units and the y-variable has ______ units.

Accepted Answer

A) decreased by 2; increased by 15 
B) increased by 2; decreased by 15 
C) decreased by 15; increased by 2 
D) increased by 15; decreased by 2 
A) decreased by 2; increased by 15 
B) increased by 2; decreased by 15 
C) decreased by 15; increased by 2 
D) increased by 15; decreased by 2

Question 13

The point at which the axes of a graph intersect is called the:

Accepted Answer

A) slope. 
B) origin. 
C) graph. 
D) intercept. 
A) slope. 
B) origin. 
C) graph. 
D) intercept.

Question 14

A scatter diagram shows:

Accepted Answer

A) how far apart dependent variables are. 
B) individual points of data showing both variable values. 
C) the slope of a line. 
D) the intercept of a curve. 
A) how far apart dependent variables are. 
B) individual points of data showing both variable values. 
C) the slope of a line. 
D) the intercept of a curve.

Question 15

Use the following to answer questions :  
-(Table: Price, Quantity Demanded, and Quantity Supplied) Look at the table Price, Quantity Demanded, and Quantity Supplied. A straight line represents the relation between:

Accepted Answer

A) price and quantity demanded. 
B) price and quantity supplied. 
C) price and quantity demanded minus quantity supplied. 
D) quantity demanded and quantity supplied. 
A) price and quantity demanded. 
B) price and quantity supplied. 
C) price and quantity demanded minus quantity supplied. 
D) quantity demanded and quantity supplied.

Question 16

Use the following to answer questions:
Figure: Unemployment Rate over Time  
-(Figure: Unemployment Rate over Time) Look at the figure Unemployment Rate over Time. In the time-series graph, as we move from the beginning of 2001 to the beginning of 2003, we see that the unemployment rate has _____ from approximately _____ to approximately _____.

Accepted Answer

A) decreased; 5%; 4% 
B) increased; 5.3%; 7.3% 
C) decreased; 7.7%; 5.5% 
D) increased; 4%; 6% 
A) decreased; 5%; 4% 
B) increased; 5.3%; 7.3% 
C) decreased; 7.7%; 5.5% 
D) increased; 4%; 6%

Question 17

Use the following to answer question :
Figure: Y = f(X)  
-(Figure: Y = f(X) Look at the figure Y = f(X). The slope of the relation between x and y:

Accepted Answer

A) is positive and constant. 
B) is negative and getting steeper. 
C) is positive and getting steeper. 
D) is positive and getting flatter. 
A) is positive and constant. 
B) is negative and getting steeper. 
C) is positive and getting steeper. 
D) is positive and getting flatter.

Question 18

The scaling of the axes of a time-series graph:

Accepted Answer

A) is not a critical element in presenting the intended information. 
B) may change the interpretation of the data. 
C) generally places the time period on the vertical axis. 
D) generally puts values of a variable, such as the unemployment rate, on the vertical axis. 
A) is not a critical element in presenting the intended information. 
B) may change the interpretation of the data. 
C) generally places the time period on the vertical axis. 
D) generally puts values of a variable, such as the unemployment rate, on the vertical axis.

Question 19

An economist wishes to build a model to explain the relationship between the number of diamonds purchased every year and the average income of consumers in that year. Which variable should be the dependent variable and which should be the independent variable? All else equal, do you expect this relationship to be positive or negative? Explain.

Accepted Answer

The number of diamonds purchased should

Question 20

Use the following to answer questions :
Figure: Demand and Supply  
-(Figure: Demand and Supply) Look at the figure Demand and Supply. The curve labeled S indicates that a price of $2 is related to a quantity of:

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 3. 
A) 1 
B) 2 
C) 3 
D) 3.

The slope of a straight line is the ratio of the:

Use the following to answer questions: -(Table: Wages and Hours Worked) Look at the table Wages and Hours Worked. Graphing the relation with wages on the vertical axis and hours worked on the horizontal axis, the slope between point D and point E is:

Use the following to answer questions : Figure: Hot Drinks Sold and Temperature -(Figure: Hot Drinks Sold and Temperature) Look at the figure Hot Drinks Sold and Temperature. If we move from point J to point L in the figure, the outside temperature has degrees and the number of hot drinks sold has .

Use the following to answer questions : Figure: Slope -(Figure: Slope) Look at the figure Slope. In the graph, the slope of the line between points A and B is:

In looking at a chart of the positive relationship between police officers and crime, the mayor remarks that more police officers cause more crime. The mayor may be wrong because she did not consider:

Two points on a nonlinear curve have coordinates given by (5, 15) and (17, 13). The average slope of the curve between these points is:

The ratio of the change in the variable on the vertical axis to the change in the variable on the horizontal axis, measured between two points on the curve, is the:

If two variables are negatively related:

If two variables are positively related:

Taylor sees a bar graph showing the average weight of adult males over the past 200 years and concludes that men get more obese over time. Taylor's conclusion may be wrong, since she did not consider:

Use the following to answer questions : Figure: Good X and Good Y -(Figure: Good X and Good Y) Look at the figure Good X and Good Y. If we move from point B to point C in the figure, the x-variable has units and the y-variable has units.

The point at which the axes of a graph intersect is called the:

A scatter diagram shows:

Use the following to answer questions : -(Table: Price, Quantity Demanded, and Quantity Supplied) Look at the table Price, Quantity Demanded, and Quantity Supplied. A straight line represents the relation between:

Use the following to answer question : Figure: Y = f(X) -(Figure: Y = f(X) Look at the figure Y = f(X). The slope of the relation between x and y:

The scaling of the axes of a time-series graph:

Use the following to answer questions : Figure: Demand and Supply -(Figure: Demand and Supply) Look at the figure Demand and Supply. The curve labeled S indicates that a price of $2 is related to a quantity of:

First Principles

Economic Models

Supply and Demand

International Trade 5

Macroeconomics: the Big Picture

Gdp and Cpi: Tracking the Macroeconomy

Unemployment and Inflation

Long-Run Economic Growth

Savings, Investment Spending, and the Financial System

Fiscal Policy Appendix Taxes and the Multiplier

Money, Banking, and the Federal Reserve System

Monetary Policy

Inflation, Disinflation, and Deflation

Crises and Consequences

Events and Ideas

Open-Economy Macroeconomics

toward a Fuller Understanding of Present Value

Filters

Exam 20: Graphs in Economics

The slope of a straight line is the ratio of the:

Use the following to answer questions: -(Table: Wages and Hours Worked) Look at the table Wages and Hours Worked. Graphing the relation with wages on the vertical axis and hours worked on the horizontal axis, the slope between point D and point E is:

Use the following to answer questions : Figure: Slope -(Figure: Slope) Look at the figure Slope. In the graph, the slope of the line between points A and B is:

In looking at a chart of the positive relationship between police officers and crime, the mayor remarks that more police officers cause more crime. The mayor may be wrong because she did not consider:

Two points on a nonlinear curve have coordinates given by (5, 15) and (17, 13). The average slope of the curve between these points is:

The ratio of the change in the variable on the vertical axis to the change in the variable on the horizontal axis, measured between two points on the curve, is the:

If two variables are negatively related:

If two variables are positively related:

Taylor sees a bar graph showing the average weight of adult males over the past 200 years and concludes that men get more obese over time. Taylor's conclusion may be wrong, since she did not consider:

Use the following to answer questions : Figure: Good X and Good Y -(Figure: Good X and Good Y) Look at the figure Good X and Good Y. If we move from point B to point C in the figure, the x-variable has ______ units and the y-variable has ______ units.

The point at which the axes of a graph intersect is called the:

A scatter diagram shows:

Use the following to answer questions : -(Table: Price, Quantity Demanded, and Quantity Supplied) Look at the table Price, Quantity Demanded, and Quantity Supplied. A straight line represents the relation between:

Use the following to answer question : Figure: Y = f(X) -(Figure: Y = f(X) Look at the figure Y = f(X). The slope of the relation between x and y:

The scaling of the axes of a time-series graph:

Use the following to answer questions : Figure: Demand and Supply -(Figure: Demand and Supply) Look at the figure Demand and Supply. The curve labeled S indicates that a price of $2 is related to a quantity of:

First Principles

Economic Models

Supply and Demand

International Trade 5

Macroeconomics: the Big Picture

Gdp and Cpi: Tracking the Macroeconomy

Unemployment and Inflation

Long-Run Economic Growth

Savings, Investment Spending, and the Financial System

Fiscal Policy Appendix Taxes and the Multiplier

Money, Banking, and the Federal Reserve System

Monetary Policy

Inflation, Disinflation, and Deflation

Crises and Consequences

Events and Ideas

Open-Economy Macroeconomics

toward a Fuller Understanding of Present Value

Filters

Use the following to answer questions : Figure: Good X and Good Y -(Figure: Good X and Good Y) Look at the figure Good X and Good Y. If we move from point B to point C in the figure, the x-variable has units and the y-variable has units.