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Survey of Economics International Edition 8th Edition by Irvin B. Tucker - Test Bank
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Test Bank For Survey of Economics International Edition 8th Edition by Irvin B. Tucker Complete Test Bank
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,Chapter 1 Appendix—Applying Graphs to EconomicsMULTIPLE CHOICE
1. A direct relationship exists when:
a. there is no association between two variables.
b. one variable increases and there is no change in the other variable.
c. one variable increases and the other variable increases.
d. one variable increases and the other variable decreases.
ANS: C PTS: 1 DIF: E TOP: Direct relationship
TYP: RE
2. An upward-sloping line or curve is used to illustrate:
a. a direct relationship.
b. an inverse relationship.
c. two unrelated variables.
d. the ceteris paribus assumption.
ANS: A PTS: 1 DIF: M TOP: Direct relationship
TYP: SA
3. Suppose two variables are directly related. If one variable rises, then the other variable:
a. also rises.
b. falls.
c. remains unchanged.
d. reacts unpredictably.
ANS: A PTS: 1 DIF: E TOP: Direct relationship
TYP: RE
4. Which of the following pairs is the most likely to exhibit a direct relationship?
a. The price of gasoline and the amount of gasoline that people purchase.
b. Cholesterol levels and the likelihood of developing heart disease.
c. Outdoor temperature and heating oil sales.
d. Annual income and weekly pawn shop visits.
ANS: B PTS: 1 DIF: M TOP: Direct relationship
TYP: SA
5. A direct relationship is expressed graphically as a:
a. positively sloped line or curve.
b. negatively sloped line or curve.
c. horizontal line.
d. vertical line.
ANS: A PTS: 1 DIF: E TOP: Direct relationship
TYP: RE
6. An inverse relationship exists when:
a. there is no association between two variables.
b. one variable increases and there is no change in the other variable.
c. one variable increases and the other variable increases.
d. one variable increases and the other variable decreases.
ANS: D PTS: 1 DIF: E TOP: Inverse relationship
TYP: RE
7. Which of the following pairs is the most likely to exhibit an inverse relationship?
a. The amount of time you study and your grade point average.
, b. People's annual income and their expenditure on personal computers.
c. Baseball players' salaries and their batting averages.
d. The price of a concert and the number of tickets people purchase.
ANS: D PTS: 1 DIF: M TOP: Inverse relationship
TYP: SA
8. When an inverse relationship is graphed, the resulting line or curve is:
a. horizontal.
b. vertical.
c. upward-sloping.
d. downward-sloping.
ANS: D PTS: 1 DIF: E TOP: Inverse relationship
TYP: RE
9. What is used to illustrate an independent relationship between two variables?
a. An upward-sloping curve.
b. A downward-sloping curve.
c. A hill-shaped curve.
d. A horizontal or vertical line.
ANS: D PTS: 1 DIF: E TOP: Independent relationship
TYP: SA
10. Which of the following is used to illustrate an independent relationship between two variables?
a. An upward-sloping curve
b. A downward-sloping curve
c. A hill-shaped curve
d. A horizontal or vertical line
ANS: D PTS: 1 DIF: M TOP: Independent relationship
TYP: SA
11. Measured between two points on a curve, the ratio of the change in the variable on the vertical axis
to the change in the variable on the horizontal axis is the:
a. axis.
b. slope.
c. dependent curve.
d. independent curve.
ANS: B PTS: 1 DIF: E TOP: Slope of a line
TYP: RE
12. Which of the following statements is correct?
a. Slope is the ratio of the vertical change (the rise or fall) to the horizontal change (the run).
b. A direct relationship is one in which two variables change in the same direction.
c. An inverse relationship is one in which two variables change in opposite directions.
d. An independent relationship is one in which two variables are unrelated.
e. All of the above.
ANS: E PTS: 1 DIF: D TOP: Slope of a line
TYP: CA
13. A line that has a different slope at each point is a:
a. curve.
b. straight line.
c. vertical line.
d. horizontal line.
ANS: A PTS: 1 DIF: E TOP: Slope of a curve
, TYP: RE
Exhibit 1A-1 Straight line
14. In Exhibit 1A-1, as X increases along the horizontal axis, corresponding to points A-B on the line, the Y
values increase. The relationship between the X and Y variables is:
a. direct.
b. inverse.
c. independent.
d. variable.
ANS: A PTS: 1 DIF: M TOP: Direct relationship
TYP: SA
15. Straight line AB in Exhibit 1A-1 shows that:
a. increasing values for X will decrease the values of Y.
b. decreasing values for X will increase the values of Y.
c. there is a direct relationship between X and Y.
d. all of the above.
ANS: C PTS: 1 DIF: E TOP: Direct relationship
TYP: RE
16. In Exhibit 1A-1, the slope of straight line AB is:
a. positive.
b. zero.
c. negative.
d. variable.
ANS: A PTS: 1 DIF: E TOP: Slope of a line
TYP: SA
17. In Exhibit 1A-1, the slope of straight line AB is:
a. 1.
b. 5.
c. 1/2.
d. 1.
ANS: C PTS: 1 DIF: M TOP: Slope of a line
TYP: SA
18. As shown in Exhibit 1A-1, the slope of straight line AB:
a. decreases with increases in X.
b. increases with increases in X.
c. increases with decreases in X.
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