Question 1

Exhibit 1A-1 Straight line

As shown in Exhibit 1A-1, the slope of straight line AB:

Accepted Answer

The slope of a straight line remains constant with changes in X. Therefore, the correct choice is D.

Question 2

Consumer surplus measures the value between the price consumers are willing to pay and the:

Accepted Answer

Consumer surplus is the difference between the maximum price a consumer is willing to pay for a good or service and the actual price paid. Therefore, the correct choice is C - actual price paid.

Question 3

​ Assume there is a relationship between two variables and the other-variables-held constant assumption (ceteris paribus) is relaxed. We would expect that the line representing this relationship would:

Accepted Answer

When the ceteris paribus assumption is relaxed, allowing other variables to change, the original relationship between the two variables might be influenced by these additional factors. This can cause the line representing the relationship to shift its position to reflect the new influences, rather than merely changing the nature of the relationship (from inverse to direct or vice versa) or simply adding more data points.

Question 4

Exhibit 1A-2 Straight line

In Exhibit 1A-2, explain the slope of straight line CD.

Accepted Answer

The slope of a straight line is the change in y divided by the change in x, which is represented by the formula (y2-y1)/(x2-x1). In this case, for the segment CD, as the Y value increases by 5, the X value increases by 10, so the slope is (Y2-Y1)/(X2-X1) = 5/10 = 1/2. Therefore, the correct answer is D.

Question 5

A drought destroys much of the peach crop. As a result, consumer surplus in the peach market:

Accepted Answer

A decrease in the peach crop due to drought will result in a decrease in the supply of peaches. This will shift the supply curve to the left, resulting in a higher equilibrium price and lower equilibrium quantity. As a result, the consumer surplus in the peach market will decrease, since consumers will have to pay a higher price for the same quantity of peaches they were buying before the drought. Therefore, the correct answer is B, which is a decrease in consumer surplus in the peach market.

Question 6

Exhibit 1A-4 Straight line

Straight line A-D in Exhibit 1A-4 shows that:

Accepted Answer

The answer of Exhibit 1A-4 Straight line

Straight line A-D in...

Question 7

Suppose Sam buys a good for $100 at a yard sale. If consumer surplus from the sale is $75, Sam would have been willing to pay:

Accepted Answer

Consumer surplus is the difference between what the consumer is willing to pay and what they actually pay. 
Therefore, if Sam's consumer surplus is $75, he must have been willing to pay the original price of $175 ($100 + $75) for the good.

Question 8

Exhibit 1A-8 Straight line relationship

Which of the following would cause a shift in the relationship shown in Exhibit 1A-8?

Accepted Answer

The answer of Exhibit 1A-8 Straight line relationship

Which of the...

Question 9

Exhibit 1A-5 Straight line

In Exhibit 1A-5, the slope for straight line CD is:

Accepted Answer

The answer of Exhibit 1A-5 Straight line

In Exhibit 1A-5, the...

Question 10

Exhibit 1A-7 Straight line relationship

Which of the following would cause a shift in the relationship shown in Exhibit 1A-7?

Accepted Answer

A rise in people's income or expenditure on air travel would not cause a shift in the relationship shown, as it is a graph of a straight-line relationship between price and quantity, assuming constant income and expenditure. However, a rise in the price of air travel would cause a shift in the relationship, as it would result in a different quantity demanded at each price point. Therefore, choice C is the best answer. Choice D is incorrect, as any change in one of the variables being graphed will result in a shift in the line.

Question 11

Using supply and demand curve analysis, the triangular area above the equilibrium price and under the demand curve is:

Accepted Answer

The triangular area above the equilibrium price and under the demand curve represents the amount that consumers are willing to pay for a good above the price they actually have to pay (i.e. their willingness to pay minus the actual price). This is known as consumer surplus.

Question 12

Exhibit 1A-10 Multi-curve graph

Exhibit 1A-10 represents a three-variable relationship. As the annual income of consumers rises from $20,000 (line A) to $40,000 (line B), the result is a:

Accepted Answer

The answer of Exhibit 1A-10 Multi-curve graph

Exhibit 1A-10 represents a...

Question 13

Exhibit 1A-1 Straight line

In Exhibit 1A-1, the slope of straight line AB is:

Accepted Answer

The slope of straight line AB is positive as it's rising from left to right.

Question 14

Exhibit 1A-4 Straight line

In Exhibit 1A-4, as X increases along the horizontal axis, corresponding to points A-D on the line, the Y value remains unchanged at 40 units. The relationship between the X and Y variables is:

Accepted Answer

The answer of Exhibit 1A-4 Straight line

In Exhibit 1A-4, as...

Question 15

Which of the following is used to illustrate an independent relationship between two variables?

Accepted Answer

A horizontal or vertical line represents that there is no relationship between the two variables, and they are independent of each other.

Question 16

Exhibit 1A-7 Straight line relationship

Using the relationship shown in Exhibit 1A-7, suppose the price of air travel increases. How would you revise the graph to show this change?

Accepted Answer

The answer of Exhibit 1A-7 Straight line relationship

Using the relationship...

Question 17

Exhibit 1A-8 Straight line relationship

For the relationship shown in Exhibit 1A-8, suppose the price of hamburgers increases and hamburgers are a substitute for pizza. What change would occur on the graph?

Accepted Answer

The answer of Exhibit 1A-8 Straight line relationship

For the relationship...

Question 18

Suppose Sue's buys a good for $60 on eBay. If the consumer surplus from the sale is $25, Sue would have been willing to pay:

Accepted Answer

Consumer surplus is the difference between the willingness to pay and the actual price paid. Therefore, if the consumer surplus is $25 and the price paid is $60, Sue's willingness to pay must be $60 - $25 = $35. So, the correct answer is A) $35.

Question 19

Exhibit 1A-9 Multi-curve graph

Exhibit 1A-9 represents a three-variable relationship. As the annual income of consumers falls from $50,000 (line A) to $30,000 (line B), the result is a:

Accepted Answer

The answer of Exhibit 1A-9 Multi-curve graph

Exhibit 1A-9 represents a...

Question 20

A shift in a curve represents a change in:

Accepted Answer

A shift in a curve typically represents a change in a third variable that is not on either axis, affecting the relationship between the two variables plotted on the graph.

Quiz 31: Understanding Direct and Inverse Relationships between Variables

Exhibit 1A-1 Straight line As shown in Exhibit 1A-1, the slope of straight line AB:

Consumer surplus measures the value between the price consumers are willing to pay and the:

Assume there is a relationship between two variables and the other-variables-held constant assumption (ceteris paribus) is relaxed. We would expect that the line representing this relationship would:

Exhibit 1A-2 Straight line In Exhibit 1A-2, explain the slope of straight line CD.

A drought destroys much of the peach crop. As a result, consumer surplus in the peach market:

Exhibit 1A-4 Straight line Straight line A-D in Exhibit 1A-4 shows that:

Suppose Sam buys a good for $100 at a yard sale. If consumer surplus from the sale is $75, Sam would have been willing to pay:

Exhibit 1A-8 Straight line relationship Which of the following would cause a shift in the relationship shown in Exhibit 1A-8?

Exhibit 1A-5 Straight line In Exhibit 1A-5, the slope for straight line CD is:

Exhibit 1A-7 Straight line relationship Which of the following would cause a shift in the relationship shown in Exhibit 1A-7?

Using supply and demand curve analysis, the triangular area above the equilibrium price and under the demand curve is:

Exhibit 1A-10 Multi-curve graph Exhibit 1A-10 represents a three-variable relationship. As the annual income of consumers rises from $20,000 (line A) to $40,000 (line B) , the result is a:

Exhibit 1A-1 Straight line In Exhibit 1A-1, the slope of straight line AB is:

Exhibit 1A-4 Straight line In Exhibit 1A-4, as X increases along the horizontal axis, corresponding to points A-D on the line, the Y value remains unchanged at 40 units. The relationship between the X and Y variables is:

Which of the following is used to illustrate an independent relationship between two variables?

Exhibit 1A-7 Straight line relationship Using the relationship shown in Exhibit 1A-7, suppose the price of air travel increases. How would you revise the graph to show this change?

Exhibit 1A-8 Straight line relationship For the relationship shown in Exhibit 1A-8, suppose the price of hamburgers increases and hamburgers are a substitute for pizza. What change would occur on the graph?

Suppose Sue's buys a good for $60 on eBay. If the consumer surplus from the sale is $25, Sue would have been willing to pay:

Exhibit 1A-9 Multi-curve graph Exhibit 1A-9 represents a three-variable relationship. As the annual income of consumers falls from $50,000 (line A) to $30,000 (line B) , the result is a:

A shift in a curve represents a change in:

Quiz 31: Understanding Direct and Inverse Relationships between Variables

Exhibit 1A-1 Straight line As shown in Exhibit 1A-1, the slope of straight line AB:

Consumer surplus measures the value between the price consumers are willing to pay and the:

​ Assume there is a relationship between two variables and the other-variables-held constant assumption (ceteris paribus) is relaxed. We would expect that the line representing this relationship would:

Exhibit 1A-2 Straight line In Exhibit 1A-2, explain the slope of straight line CD.

A drought destroys much of the peach crop. As a result, consumer surplus in the peach market:

Exhibit 1A-4 Straight line Straight line A-D in Exhibit 1A-4 shows that:

Suppose Sam buys a good for $100 at a yard sale. If consumer surplus from the sale is $75, Sam would have been willing to pay:

Exhibit 1A-8 Straight line relationship Which of the following would cause a shift in the relationship shown in Exhibit 1A-8?

Exhibit 1A-5 Straight line In Exhibit 1A-5, the slope for straight line CD is:

Exhibit 1A-7 Straight line relationship Which of the following would cause a shift in the relationship shown in Exhibit 1A-7?

Using supply and demand curve analysis, the triangular area above the equilibrium price and under the demand curve is:

Exhibit 1A-10 Multi-curve graph Exhibit 1A-10 represents a three-variable relationship. As the annual income of consumers rises from $20,000 (line A) to $40,000 (line B) , the result is a:

Exhibit 1A-1 Straight line In Exhibit 1A-1, the slope of straight line AB is:

Exhibit 1A-4 Straight line In Exhibit 1A-4, as X increases along the horizontal axis, corresponding to points A-D on the line, the Y value remains unchanged at 40 units. The relationship between the X and Y variables is:

Which of the following is used to illustrate an independent relationship between two variables?

Exhibit 1A-7 Straight line relationship Using the relationship shown in Exhibit 1A-7, suppose the price of air travel increases. How would you revise the graph to show this change?

Exhibit 1A-8 Straight line relationship For the relationship shown in Exhibit 1A-8, suppose the price of hamburgers increases and hamburgers are a substitute for pizza. What change would occur on the graph?

Suppose Sue's buys a good for $60 on eBay. If the consumer surplus from the sale is $25, Sue would have been willing to pay:

Exhibit 1A-9 Multi-curve graph Exhibit 1A-9 represents a three-variable relationship. As the annual income of consumers falls from $50,000 (line A) to $30,000 (line B) , the result is a:

A shift in a curve represents a change in:

Assume there is a relationship between two variables and the other-variables-held constant assumption (ceteris paribus) is relaxed. We would expect that the line representing this relationship would: