Q: Which of the following is a correct formula for calculating the slope of a line on a graph where $$y is on $$the vertical axis and $$x is on $$the horizontal axis?

$$ \text{Slope} = \frac{\Delta y}{\Delta x} $$

Question 1

Which of the following best describes the concept of scarcity in economics?

Accepted Answer

Scarcity refers to the limited nature of resources used to produce goods and services.

Question 2

Which of the following is NOT one of the three key economic questions every society must answer?

Accepted Answer

How do we maximize profits for all firms?

Question 3

A city government is deciding whether to use a plot of land for a new park or for commercial development. This scenario best illustrates which economic concept?

Accepted Answer

The concept of opportunity cost and trade-offs due to scarcity.

Question 4

Which of the following is an example of human capital?

Accepted Answer

A worker's knowledge and skills acquired through education and experience.

Question 5

Which of the following statements is an example of positive economic analysis?

Accepted Answer

Raising the minimum wage will increase unemployment among teenagers.

Question 6

Suppose Canada specializes in producing plywood and Mexico specializes in producing lemons. According to the study materials, what is a likely outcome if they trade with each other?

Accepted Answer

Canada will have more wood production jobs and fewer lemon production jobs.

Question 7

Which of the following best illustrates the economic way of thinking?

Accepted Answer

Using assumptions to simplify complex problems and focusing on marginal changes.

Question 8

What does the Latin phrase 'ceteris paribus' mean in economic analysis?

Accepted Answer

Other variables are held fixed while one variable changes.

Question 9

A manager is deciding whether to borrow money now at a fixed interest rate or wait, hoping rates will fall. Which field of economics is most relevant to this decision?

Accepted Answer

Macroeconomics, because it studies interest rates and inflation.

Question 10

Which of the following is a correct formula for calculating the slope of a line on a graph where $$y is on $$the vertical axis and $$x is on $$the horizontal axis?

Accepted Answer

$$ 	ext{Slope} = \frac{\Delta y}{\Delta x} $$

Question 11

If a student increases their study time from 2 hours to 4 hours and their exam grade rises from 10 to 16, what is the average marginal increase in grade per hour studied over this interval?

Accepted Answer

$$ \frac{16 - 10}{4 - 2} = 3 $$ points per hour

Question 12

A consumer has $$360 to spend on CDs (12 $$each) and downloadable songs ($1 each). What is the opportunity cost of buying one more CD in terms of songs forgone?

Accepted Answer

12 songs

Question 13

Which of the following best describes a positive, nonlinear relationship between two variables?

Accepted Answer

As one variable increases, the other increases, but the rate of increase changes.

Question 14

If the production cost for grain increases from $$10 to 15 $$when output rises from 1 ton to 2 tons, and from $$100 to 125 $$when output rises from 10 to 11 tons, what does this indicate about the cost curve?

Accepted Answer

The cost curve is nonlinear and increases at an increasing rate.

Question 15

Which of the following is NOT a factor of production?

Accepted Answer

Money used to buy stocks

Question 16

A government imposes a congestion tax on drivers during rush hour. According to economic analysis, what is the likely effect?

Accepted Answer

Some drivers will change their behavior to avoid the tax, reducing congestion.

Question 17

Which of the following best describes the use of the midpoint method for calculating percentage changes?

Accepted Answer

It averages the starting and ending values to avoid asymmetry in percentage changes.

Question 18

Which of the following is a real-world application of microeconomics?

Accepted Answer

Predicting how a tax on beer will affect its price and quantity sold.

Question 19

Which of the following is an example of a normative economic statement?

Accepted Answer

The government should provide free college education.

Question 20

If a graph shows a positive relationship between hours worked and income, and the wage is $$8 per hour, what is the equation for income (y$) as a function of hours worked (x$), assuming a fixed weekly allowance of 40$$?

Accepted Answer

$$ y = 40 + 8x $$

Chapter 1: Introduction to Economics – Principles, Scarcity, and Economic Thinking

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