18) What does the slope of the line shown in the above figure equal?
Answer: The slope equals the change in variable on the y-axis divided by the change in the variable on the x-axis, or
Topic: Slope of a straight line
Skill: Level 3: Using models
Section: Chapter 1 Appendix - Checkpoint 3
Status: Old
AACSB: Analytic skills
19) What does the slope of the line shown in the above figure equal?
Answer: The slope equals the change in variable on the y-axis divided by the change in the variable on the x-axis, or
Topic: Slope of a straight line
Skill: Level 3: Using models
Section: Chapter 1 Appendix - Checkpoint 3
Status: Old
AACSB: Analytic skills
20) What does the slope of the line shown in the above figure equal?
Answer: The slope equals the change in variable on the y-axis divided by the change in the variable on the x-axis, or
Topic: Slope of a straight line
Skill: Level 3: Using models
Section: Chapter 1 Appendix - Checkpoint 3
Status: Old
AACSB: Analytic skills
21) What does the slope of the curved line at point A shown in the above figure equal?
Answer: The slope of a curved line equals the slope of a straight line that touches the curved line at only that point. And, the slope of a straight line equals the change in variable on the y-axis divided by the change in the variable on the x-axis. Measure the slope of the straight line from point A to where the line crosses the x-axis, at 15. Thus the straight line has a slope of Therefore the curve line at point A also has a slope equal to -6.
Topic: Slope
Skill: Level 3: Using models
Section: Chapter 1 Appendix - Checkpoint 3
Status: Old
AACSB: Analytic skills
22) "It is impossible to represent a three variable relationship in a two-dimensional graph." Is this statement true or false? Explain your answer.
Answer: The statement is false because it is possible to represent a three variable relationship in a two dimensional graph. To do so, start by focusing on two of the variables. Assume that the third variable does not change (the ceteris paribus assumption) and then graph the relationship between the two variables. The graph shows how these two variables are related when the third variable does not change. When the third variable does change, then the entire relationship between the two graphed variables changes. In other words, the line showing the relationship between the two graphed variables shifts so that it becomes an entirely new line. The shift in the line shows how the third variable influences the other two.
Topic: Relationships among more than two variables
Skill: Level 2: Using definitions
Section: Chapter 1 Appendix - Checkpoint 4
Status: Old
AACSB: Analytic skills