Alright, so now we're going to do a quick recap on how to find the maximum point on a graph and how to find the minimum point on a graph. So here in this example, I've got this kind of upside-down U. So, how do we find the maximum or minimum point? Well, you'll see that not all graphs have a maximum or a minimum. It's only when they kind of turn around like this, right, where they're going up, up, up, up, up, and then they turn around and start going down. Right? So when we want to find the maximum point, it's that point where it turns around. So if you notice here, the graph seems to be rising, rising, rising, rising, rising, rising, rising, and then on this side, it's falling, falling, falling. Right? So we've got to find that point where it turns around. Notice here it's still rising a little bit. Right? It's still rising a little bit, and then here it's pretty clear that this is the point where it turns around. I'm going to do it in a different color there. So right here is the point where it turns around. We're not doing any math here. I just want to be able to identify the maximum and the minimum. So, right here, that is our maximum. Okay? You're going to want to be able to do this and find maximums and minimums on a graph. So, what you'll notice is this one doesn't have a minimum. It went up, up, up to a point and then started going down, down, down. There wasn't a point where it was at a max bottom or max top. You might think this is a minimum here, this is a minimum here, but usually, these graphs are going to continue. So, it would continue going down, and there wouldn't really be a minimum. So in this, when we see a critical point, it's kind of where it's turning around there, not where it just stops. Right? So that will be our critical point for our maximum, that we might want to identify. Let's do the same thing with a minimum point right here. So I'm thinking you guys can guess where the minimum point is going to be, but let's go ahead and do the same kind of method here. You see that the graph is falling and falling and falling, right, and then on the other side, it starts rising again. So there had to be a point where it turned around. It was falling for a while then now it's rising. Where did it turn around? It's right here. That is our minimum point, and for now, all we want to do is be able to recognize when a graph has a minimum or a maximum, and then later on, we will be able to use this information when we're analyzing graphs. Cool? Alright. Let's move on.
Table of contents
- 1. Introduction to Macroeconomics1h 57m
- 2. Introductory Economic Models59m
- 3. Supply and Demand3h 43m
- Introduction to Supply and Demand10m
- The Basics of Demand7m
- Individual Demand and Market Demand6m
- Shifting Demand44m
- The Basics of Supply3m
- Individual Supply and Market Supply6m
- Shifting Supply28m
- Big Daddy Shift Summary8m
- Supply and Demand Together: Equilibrium, Shortage, and Surplus10m
- Supply and Demand Together: One-sided Shifts22m
- Supply and Demand Together: Both Shift34m
- Supply and Demand: Quantitative Analysis40m
- 4. Elasticity2h 26m
- Percentage Change and Price Elasticity of Demand19m
- Elasticity and the Midpoint Method20m
- Price Elasticity of Demand on a Graph11m
- Determinants of Price Elasticity of Demand6m
- Total Revenue Test13m
- Total Revenue Along a Linear Demand Curve14m
- Income Elasticity of Demand23m
- Cross-Price Elasticity of Demand11m
- Price Elasticity of Supply12m
- Price Elasticity of Supply on a Graph3m
- Elasticity Summary9m
- 5. Consumer and Producer Surplus; Price Ceilings and Price Floors3h 40m
- Consumer Surplus and WIllingness to Pay33m
- Producer Surplus and Willingness to Sell26m
- Economic Surplus and Efficiency18m
- Quantitative Analysis of Consumer and Producer Surplus at Equilibrium28m
- Price Ceilings, Price Floors, and Black Markets38m
- Quantitative Analysis of Price Ceilings and Floors: Finding Points20m
- Quantitative Analysis of Price Ceilings and Floors: Finding Areas54m
- 6. Introduction to Taxes1h 25m
- 7. Externalities1h 3m
- 8. The Types of Goods1h 13m
- 9. International Trade1h 16m
- 10. Introducing Economic Concepts49m
- Introducing Concepts - Business Cycle7m
- Introducing Concepts - Nominal GDP and Real GDP12m
- Introducing Concepts - Unemployment and Inflation3m
- Introducing Concepts - Economic Growth6m
- Introducing Concepts - Savings and Investment5m
- Introducing Concepts - Trade Deficit and Surplus6m
- Introducing Concepts - Monetary Policy and Fiscal Policy7m
- 11. Gross Domestic Product (GDP) and Consumer Price Index (CPI)1h 37m
- Calculating GDP11m
- Detailed Explanation of GDP Components9m
- Value Added Method for Measuring GDP1m
- Nominal GDP and Real GDP22m
- Shortcomings of GDP8m
- Calculating GDP Using the Income Approach10m
- Other Measures of Total Production and Total Income5m
- Consumer Price Index (CPI)13m
- Using CPI to Adjust for Inflation7m
- Problems with the Consumer Price Index (CPI)6m
- 12. Unemployment and Inflation1h 22m
- Labor Force and Unemployment9m
- Types of Unemployment12m
- Labor Unions and Collective Bargaining6m
- Unemployment: Minimum Wage Laws and Efficiency Wages7m
- Unemployment Trends7m
- Nominal Interest, Real Interest, and the Fisher Equation10m
- Nominal Income and Real Income12m
- Who is Affected by Inflation?5m
- Demand-Pull and Cost-Push Inflation6m
- Costs of Inflation: Shoe-leather Costs and Menu Costs4m
- 13. Productivity and Economic Growth1h 17m
- 14. The Financial System1h 37m
- 15. Income and Consumption52m
- 16. Deriving the Aggregate Expenditures Model1h 22m
- 17. Aggregate Demand and Aggregate Supply Analysis1h 18m
- 18. The Monetary System1h 1m
- The Functions of Money; The Kinds of Money8m
- Defining the Money Supply: M1 and M24m
- Required Reserves and the Deposit Multiplier8m
- Introduction to the Federal Reserve8m
- The Federal Reserve and the Money Supply11m
- History of the US Banking System9m
- The Financial Crisis of 2007-2009 (The Great Recession)10m
- 19. Monetary Policy1h 32m
- 20. Fiscal Policy1h 0m
- 21. Revisiting Inflation, Unemployment, and Policy46m
- 22. Balance of Payments30m
- 23. Exchange Rates1h 16m
- Exchange Rates: Introduction14m
- Exchange Rates: Nominal and Real13m
- Exchange Rates: Equilibrium6m
- Exchange Rates: Shifts in Supply and Demand11m
- Exchange Rates and Net Exports6m
- Exchange Rates: Fixed, Flexible, and Managed Float5m
- Exchange Rates: Purchasing Power Parity7m
- The Gold Standard4m
- The Bretton Woods System6m
- 24. Macroeconomic Schools of Thought40m
- 25. Dynamic AD/AS Model35m
- 26. Special Topics11m
1. Introduction to Macroeconomics
Graphing Review
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