Question 1

If x causes y,then

Accepted Answer

A) x and y are inversely related 
B) y is a dependent variable 
C) other variables don't matter 
D) y must,in turn,cause x 
E) x and y are always in a direct relation to each other 
A) x and y are inversely related 
B) y is a dependent variable 
C) other variables don't matter 
D) y must,in turn,cause x 
E) x and y are always in a direct relation to each other B

Question 2

Exhibit 1-14  
-Using Exhibit 1-14,calculate the slope of the curve where x equals 50.

Accepted Answer

A) 0 
B) 1 
C) infinite 
D) -1 
E) the slope cannot be determined because there is no tangent line 
A) 0 
B) 1 
C) infinite 
D) -1 
E) the slope cannot be determined because there is no tangent line A

Question 3

The statement that there is an inverse relationship between x and y means that

Accepted Answer

A) x causes y 
B) y causes x 
C) x and y move in opposite directions 
D) either y causes x or x causes y 
E) there is no causal relationship between x and y 
A) x causes y 
B) y causes x 
C) x and y move in opposite directions 
D) either y causes x or x causes y 
E) there is no causal relationship between x and y C

Question 4

A functional relationship exists between two variables if the value of one variable depends on the value of the other variable.

Accepted Answer

A) True 
 B)False

Question 5

Exhibit 1-2  
-In Exhibit 1-2,when y is less than 12,the

Accepted Answer

A) value of x is larger on curve A than on curve B 
B) value of x is smaller on curve A than on curve B 
C) value of x is the same on curve A as on curve B 
D) slope of line A is negative 
E) slope of line B is positive 
A) value of x is larger on curve A than on curve B 
B) value of x is smaller on curve A than on curve B 
C) value of x is the same on curve A as on curve B 
D) slope of line A is negative 
E) slope of line B is positive

Question 6

If slope = 2 for a line on a graph with x on the horizontal axis and y on the vertical axis,then if

Accepted Answer

A) x decreases by 4,y decreases by 8 
B) x = -4,then y = -2 
C) y decreases by 4,x decreases by 8 
D) x = -4,y = -8 
E) x increases by 4,y decreases by 8 
A) x decreases by 4,y decreases by 8 
B) x = -4,then y = -2 
C) y decreases by 4,x decreases by 8 
D) x = -4,y = -8 
E) x increases by 4,y decreases by 8

Question 7

A tangent line is a straight line

Accepted Answer

A) that intersects a curved line twice 
B) with a slope equal to infinity 
C) that touches a curved line at only one point 
D) that intersects a curved line at several points 
E) that runs along the vertical axis 
A) that intersects a curved line twice 
B) with a slope equal to infinity 
C) that touches a curved line at only one point 
D) that intersects a curved line at several points 
E) that runs along the vertical axis

Question 8

Suppose a graph with Ron's weight on the vertical axis and his consumption of ice cream on the horizontal axis indicated that for each serving of ice cream he ate,Ron would gain 3 pounds,regardless of how much ice cream he had already eaten.This graph would show a

Accepted Answer

A) horizontal line at weight = 3 
B) straight line with slope = 3 
C) straight line with slope = 1/2 
D) straight line with slope = -3 
E) straight line with slope = -1/3 
A) horizontal line at weight = 3 
B) straight line with slope = 3 
C) straight line with slope = 1/2 
D) straight line with slope = -3 
E) straight line with slope = -1/3

Question 9

Exhibit 1-1  
-In Exhibit 1-1 the movement from point b to point c represents

Accepted Answer

A) an increase in x of 30 units and an increase in y of 10 units 
B) an increase in x of 10 units and an increase in y of 30 units 
C) an increase in x of 60 units and a decrease in y of 20 units 
D) an increase in x of 20 units and a decrease in y of 60 units 
E) an increase in x of 20 units and a decrease in y of 30 units 
A) an increase in x of 30 units and an increase in y of 10 units 
B) an increase in x of 10 units and an increase in y of 30 units 
C) an increase in x of 60 units and a decrease in y of 20 units 
D) an increase in x of 20 units and a decrease in y of 60 units 
E) an increase in x of 20 units and a decrease in y of 30 units

Question 10

Exhibit 1-5  
-In Exhibit 1-5,curve B has a __________ slope that is __________ at every point.

Accepted Answer

A) positive; constant 
B) positive; changing 
C) negative; constant 
D) negative; changing 
E) changing; constant 
A) positive; constant 
B) positive; changing 
C) negative; constant 
D) negative; changing 
E) changing; constant

Question 11

Exhibit 1-4  
-Which of the following must be true of line D in Exhibit 1-4?

Accepted Answer

A) A decrease in P is associated with a decrease in Q. 
B) An increase in P is associated with an increase in Q. 
C) There is no relation between P and Q. 
D) There is an inverse relationship between P and Q. 
E) There is a direct relationship between P and Q. 
A) A decrease in P is associated with a decrease in Q. 
B) An increase in P is associated with an increase in Q. 
C) There is no relation between P and Q. 
D) There is an inverse relationship between P and Q. 
E) There is a direct relationship between P and Q.

Question 12

Moderate exercise is better than none,but excessive exercise is harmful.What is the shape of the graph of health benefits versus hours of exercise per week if health benefits are measured on the vertical axis and exercise is measured on the horizontal axis?

Accepted Answer

A) a positively sloped straight line 
B) a negatively sloped straight line 
C) a vertical straight line 
D) a U-shaped curve 
E) a hill-shaped curve 
A) a positively sloped straight line 
B) a negatively sloped straight line 
C) a vertical straight line 
D) a U-shaped curve 
E) a hill-shaped curve

Question 13

A downward-sloping straight line has a decreasing slope.

Accepted Answer

A) True 
 B)False

Question 14

Exhibit 1-5  
-In Exhibit 1-5,curve A has a slope of

Accepted Answer

A) 0 
B) 1.25 
C) 1.33 
D) -1.25 
E) -1.33 
A) 0 
B) 1.25 
C) 1.33 
D) -1.25 
E) -1.33

Question 15

Exhibit 1-5  
-In Exhibit 1-5,curve A has a __________ slope that is __________ at every point.

Accepted Answer

A) positive; constant 
B) positive; changing 
C) negative; constant 
D) negative; changing 
E) changing; constant 
A) positive; constant 
B) positive; changing 
C) negative; constant 
D) negative; changing 
E) changing; constant

Question 16

On a graph with x on the horizontal axis and y on the vertical axis,the origin is

Accepted Answer

A) the point where x = 0 and y = 0 
B) any point where x = 0 
C) any point where y = 0 
D) where a curve intersects the vertical axis 
E) where a curve intersects the horizontal axis 
A) the point where x = 0 and y = 0 
B) any point where x = 0 
C) any point where y = 0 
D) where a curve intersects the vertical axis 
E) where a curve intersects the horizontal axis

Question 17

Exhibit 1-10  
-In Exhibit 1-10,the slope of the line is

Accepted Answer

A) negative for all values of x 
B) positive for all values of x 
C) zero at x = 7 
D) first negative,then positive as x increases 
E) negative for all values of y 
A) negative for all values of x 
B) positive for all values of x 
C) zero at x = 7 
D) first negative,then positive as x increases 
E) negative for all values of y

Question 18

Most economics graphs reflect the relationship between how many economic variables?

Accepted Answer

A) three 
B) two 
C) four 
D) thirty 
E) twenty 
A) three 
B) two 
C) four 
D) thirty 
E) twenty

Question 19

A U-shaped curve has a positive slope everywhere.

Accepted Answer

A) True 
 B)False

Question 20

If the dependent variable Y is directly related to the independent variable X,this means that changes in X cause changes in Y.

Accepted Answer

A) True 
 B)False

Exam 22: understanding Graphs

If x causes y,then

Exhibit 1-14 -Using Exhibit 1-14,calculate the slope of the curve where x equals 50.

The statement that there is an inverse relationship between x and y means that

A functional relationship exists between two variables if the value of one variable depends on the value of the other variable.

Exhibit 1-2 -In Exhibit 1-2,when y is less than 12,the

If slope = 2 for a line on a graph with x on the horizontal axis and y on the vertical axis,then if

A tangent line is a straight line

Suppose a graph with Ron's weight on the vertical axis and his consumption of ice cream on the horizontal axis indicated that for each serving of ice cream he ate,Ron would gain 3 pounds,regardless of how much ice cream he had already eaten.This graph would show a

Exhibit 1-1 -In Exhibit 1-1 the movement from point b to point c represents

Exhibit 1-5 -In Exhibit 1-5,curve B has a __________ slope that is __________ at every point.

Exhibit 1-4 -Which of the following must be true of line D in Exhibit 1-4?

Moderate exercise is better than none,but excessive exercise is harmful.What is the shape of the graph of health benefits versus hours of exercise per week if health benefits are measured on the vertical axis and exercise is measured on the horizontal axis?

A downward-sloping straight line has a decreasing slope.

Exhibit 1-5 -In Exhibit 1-5,curve A has a slope of

Exhibit 1-5 -In Exhibit 1-5,curve A has a __________ slope that is __________ at every point.

On a graph with x on the horizontal axis and y on the vertical axis,the origin is

Exhibit 1-10 -In Exhibit 1-10,the slope of the line is

Most economics graphs reflect the relationship between how many economic variables?

A U-shaped curve has a positive slope everywhere.

If the dependent variable Y is directly related to the independent variable X,this means that changes in X cause changes in Y.

The Art and Science of Economic Analysis

Economic Tools and Economics Systems

Economic Decision Makers

Demand, supply, and Markets

Introduction to Macroeconomics

Tracking the Useconomy

Unemployment and Inflation

Productivity and Growth

Aaggregate Expenditure and Aggregate Demand

Baggregate Expenditure and Aggregate Demand

Aggregate Supply

Fiscal Policy

Federal Budgets and Public Policy

Money and the Financial System

Banking and the Money Supply

Monetary Theory and Policy

Macro Policy Debate: Active or Passive

International Trade

Externalities and the Environment

International Finance

Economic Development

National Income Accounts

The Algebra of Demand-Side Equilibrium

Filters

Exhibit 1-5 -In Exhibit 1-5,curve B has a slope that is at every point.

Exhibit 1-5 -In Exhibit 1-5,curve A has a slope that is at every point.