Question 1

If a given value of x is associated with a particular value of y,

Accepted Answer

A) then x causes y 
B) then y causes x 
C) then x and y must be logically connected 
D) there are no other variables that affect the value of y 
E) there may be no causal relationship between x and y 
A) then x causes y 
B) then y causes x 
C) then x and y must be logically connected 
D) there are no other variables that affect the value of y 
E) there may be no causal relationship between x and y

Question 2

The slope of a horizontal straight line is infinity.

Accepted Answer

A) True 
 B)False

Question 3

The slope of a line is defined as the

Accepted Answer

A) change in the value of the variable on the vertical axis divided by the change in the value of the variable on the horizontal axis 
B) value of the variable on the horizontal axis divided by the value of the intercept on the vertical axis 
C) change in the value of the variable on the horizontal axis divided by the increase in the value of the variable on the vertical axis 
D) value of the variable on the vertical axis divided by the value of the variable on the horizontal axis 
E) change in the value of the variable on the vertical axis times the increase in the value of the variable on the horizontal axis 
A) change in the value of the variable on the vertical axis divided by the change in the value of the variable on the horizontal axis 
B) value of the variable on the horizontal axis divided by the value of the intercept on the vertical axis 
C) change in the value of the variable on the horizontal axis divided by the increase in the value of the variable on the vertical axis 
D) value of the variable on the vertical axis divided by the value of the variable on the horizontal axis 
E) change in the value of the variable on the vertical axis times the increase in the value of the variable on the horizontal axis

Question 4

A line on a graph will shift if

Accepted Answer

A) the independent variable changes 
B) there are no changes in any variables considered in the model 
C) there is a change in a variable that had previously been assumed to be constant 
D) a change in the independent variable causes a change in the dependent variable 
E) the independent variable and the dependent variable are unrelated 
A) the independent variable changes 
B) there are no changes in any variables considered in the model 
C) there is a change in a variable that had previously been assumed to be constant 
D) a change in the independent variable causes a change in the dependent variable 
E) the independent variable and the dependent variable are unrelated

Question 5

Exhibit 1-2  
-In Exhibit 1-2,at x = 8,the

Accepted Answer

A) value of y is larger on curve A than on curve B 
B) value of y is smaller on curve A than on curve B 
C) value of y 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 y is larger on curve A than on curve B 
B) value of y is smaller on curve A than on curve B 
C) value of y 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

Exhibit 1-3  
-In Exhibit 1-3,for any value of x,the

Accepted Answer

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

Question 7

The slope of a line

Accepted Answer

A) can only be calculated for straight lines 
B) varies at different points along a straight line 
C) indicates whether or not there is a causal relationship between variables 
D) is independent of the units of measurement used 
E) indicates how much the vertical variable changes for a given change in the horizontal variable 
A) can only be calculated for straight lines 
B) varies at different points along a straight line 
C) indicates whether or not there is a causal relationship between variables 
D) is independent of the units of measurement used 
E) indicates how much the vertical variable changes for a given change in the horizontal variable

Question 8

Suppose the cost of producing copper tubing is $1 per foot.If production costs were measured on the vertical axis and quantity of copper tubing were measured on the horizontal axis,which of the following lines would have the smallest slope?

Accepted Answer

A) a line representing the quantity of tubing measured in inches 
B) a line representing the quantity of tubing measured in feet 
C) a line representing the quantity of tubing measured in yards 
D) the 45-degree line 
E) any vertical line 
A) a line representing the quantity of tubing measured in inches 
B) a line representing the quantity of tubing measured in feet 
C) a line representing the quantity of tubing measured in yards 
D) the 45-degree line 
E) any vertical line

Question 9

Exhibit 1-5  
-In Exhibit 1-5,curve B 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 10

The numerical value of the slope of a line depends in part on the units of measurement used.

Accepted Answer

A) True 
 B)False

Question 11

Exhibit 1-15  
-Refer to Exhibit 1-15.The reason that Line (a)would shift to the position of Line (b)is

Accepted Answer

A) a change in quantity 
B) a change in price 
C) a change in an assumption about the relationship between the two variables observed 
D) a change from a positive relation to a negative relation 
E) a change from a negative relation to a positive relation 
A) a change in quantity 
B) a change in price 
C) a change in an assumption about the relationship between the two variables observed 
D) a change from a positive relation to a negative relation 
E) a change from a negative relation to a positive relation

Question 12

Exhibit 1-16          
-Refer to exhibit 1-16.Which of the graphs illustrates an inverse or negative relationship between variable X and variable Y?

Accepted Answer

A) a 
B) b 
C) c 
D) d 
E) e 
A) a 
B) b 
C) c 
D) d 
E) e

Question 13

Exhibit 1-6  
-Along the curve in Exhibit 1-6,

Accepted Answer

A) if P = $6,then Q = 8 
B) if Q = 10,then P = $4 
C) the slope is equal to -1 
D) Q increases as P increases 
E) there is a positive relationship between Q and P 
A) if P = $6,then Q = 8 
B) if Q = 10,then P = $4 
C) the slope is equal to -1 
D) Q increases as P increases 
E) there is a positive relationship between Q and P

Question 14

Exhibit 1-2  
-In Exhibit 1-2,when y is greater 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 15

The slope of an inverted U-shaped curve is infinity at the top of the curve.

Accepted Answer

A) True 
 B)False

Question 16

Exhibit 1-8  
-The slope of the line in Exhibit 1-8 is

Accepted Answer

A) 0.1 
B) 1 
C) 10 
D) -0.1 
E) -10 
A) 0.1 
B) 1 
C) 10 
D) -0.1 
E) -10

Question 17

Any point on a graph represents a combination of particular values of two variables.

Accepted Answer

A) True 
 B)False

Question 18

Exhibit 1-2  
-In Exhibit 1-2,at y = 14,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 19

The part of a graph that is most applicable to marginal analysis is the

Accepted Answer

A) origin 
B) slope 
C) horizontal axis 
D) dependent variable 
E) inverse relation 
A) origin 
B) slope 
C) horizontal axis 
D) dependent variable 
E) inverse relation

Question 20

One economic application of the slope of a line is

Accepted Answer

A) measuring unlimited wants 
B) behavioral analysis 
C) marginal analysis 
D) allocative efficiency 
E) rational self-interest 
A) measuring unlimited wants 
B) behavioral analysis 
C) marginal analysis 
D) allocative efficiency 
E) rational self-interest

Exam 22: understanding Graphs

If a given value of x is associated with a particular value of y,

The slope of a horizontal straight line is infinity.

The slope of a line is defined as the

A line on a graph will shift if

Exhibit 1-2 -In Exhibit 1-2,at x = 8,the

Exhibit 1-3 -In Exhibit 1-3,for any value of x,the

The slope of a line

Suppose the cost of producing copper tubing is $1 per foot.If production costs were measured on the vertical axis and quantity of copper tubing were measured on the horizontal axis,which of the following lines would have the smallest slope?

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

The numerical value of the slope of a line depends in part on the units of measurement used.

Exhibit 1-15 -Refer to Exhibit 1-15.The reason that Line (a)would shift to the position of Line (b)is

Exhibit 1-16 -Refer to exhibit 1-16.Which of the graphs illustrates an inverse or negative relationship between variable X and variable Y?

Exhibit 1-6 -Along the curve in Exhibit 1-6,

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

The slope of an inverted U-shaped curve is infinity at the top of the curve.

Exhibit 1-8 -The slope of the line in Exhibit 1-8 is

Any point on a graph represents a combination of particular values of two variables.

Exhibit 1-2 -In Exhibit 1-2,at y = 14,the

The part of a graph that is most applicable to marginal analysis is the

One economic application of the slope of a line is

The Art and Science of Economic Analysis

Economic Tools and Economics Systems

Economic Decision Makers

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Introduction to Macroeconomics

Tracking the Useconomy

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The Algebra of Demand-Side Equilibrium

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