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Microeconomics For Today 9th Edition by Irvin B. Tucker - Test Bank
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,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.
ANSWER: c
DIFFICULTY: Easy
NATIONAL STANDARDS: United States - BUSPROG:Analytic:Ref - BUSPROG: Analytic
TOPICS: A Direct Relationship
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.
ANSWER: a
DIFFICULTY: Moderate
NATIONAL STANDARDS: United States - BUSPROG:Analytic:Ref - BUSPROG: Analytic
TOPICS: A Direct Relationship
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.
ANSWER: a
DIFFICULTY: Easy
NATIONAL STANDARDS: United States - BUSPROG:Analytic:Ref - BUSPROG: Analytic
TOPICS: A Direct Relationship
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.
ANSWER: b
DIFFICULTY: Moderate
NATIONAL STANDARDS: United States - BUSPROG:Analytic:Ref - BUSPROG: Analytic
TOPICS: A Direct Relationship
5. A direct relationship is expressed graphically as a:
a. positively sloped line or curve.
b. negatively sloped line or curve.
c. horizontal line.
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, d. vertical line.
ANSWER: a
DIFFICULTY: Easy
NATIONAL STANDARDS: United States - BUSPROG:Analytic:Ref - BUSPROG: Analytic
TOPICS: A Direct Relationship
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.
ANSWER: d
DIFFICULTY: Easy
NATIONAL STANDARDS: United States - BUSPROG:Analytic:Ref - BUSPROG: Analytic
TOPICS: An Inverse Relationship
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.
ANSWER: d
DIFFICULTY: Moderate
NATIONAL STANDARDS: United States - BUSPROG:Analytic:Ref - BUSPROG: Analytic
TOPICS: An Inverse Relationship
8. When an inverse relationship is graphed, the resulting line or curve is:
a. horizontal.
b. vertical.
c. upward-sloping.
d. downward-sloping.
ANSWER: d
DIFFICULTY: Easy
NATIONAL STANDARDS: United States - BUSPROG:Analytic:Ref - BUSPROG: Analytic
TOPICS: An Inverse Relationship
9. The slope of a line parallel to the vertical axis is:
a. 1.
b. 0.
c. infinite.
d. undefined.
ANSWER: c
DIFFICULTY: Moderate
NATIONAL STANDARDS: United States - BUSPROG:Analytic:Ref - BUSPROG: Analytic
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, TOPICS: The Slope of a Straight Line
10. The slope of a line parallel to the horizontal axis is:
a. 1.
b. 0.
c. infinite.
d. undefined.
ANSWER: b
DIFFICULTY: Moderate
NATIONAL STANDARDS: United States - BUSPROG:Analytic:Ref - BUSPROG: Analytic
TOPICS: The Slope of a Straight Line
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.
ANSWER: b
DIFFICULTY: Easy
NATIONAL STANDARDS: United States - BUSPROG:Analytic:Ref - BUSPROG: Analytic
TOPICS: The Slope of a Straight Line
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 these.
ANSWER: e
DIFFICULTY: Challenging
NATIONAL STANDARDS: United States - BUSPROG:Analytic:Ref - BUSPROG: Analytic
TOPICS: The Slope of a Straight Line
13. 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
ANSWER: d
DIFFICULTY: Easy
NATIONAL STANDARDS: United States - BUSPROG:Analytic:Ref - BUSPROG: Analytic
TOPICS: The Slope of a Straight Line
14. A line that has a different slope at each point is a:
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