Plot the following Price and Quantity combinations: (4, 8), (1, 2), (5, 10) Is your graph more likely to be a demand curve or a supply curve? Why? Using the equation of a line, and P for price and Q for quantity, what is the algebraic formula of this curve?
Supply and Demand Problem Set[1]
Use the following graph to answer questions 1 through 3:
- Plot the following Price and Quantity combinations: (4, 8), (1, 2), (5, 10)
- Is your graph more likely to be a demand curve or a supply curve? Why?
- Using the equation of a line, and P for price and Q for quantity, what is the algebraic formula of this curve?
Use the following graph to answer questions 4 and 5:
- Plot the following Price and Quantity combinations. Note that the points are given in the format (Quantity, Price).
(0, 50), (2, 40), (4, 30), (6, 20), (8, 10)
- Using the equation of a line, what is the algebraic formula of this demand curve?
Use the following information to answer questions 6 through 10:
Suppose the equation of the line changes to . Compute the quantity demanded at each indicated price.
Price: $50, Quantity:- Price: $40, Quantity:
- Price: $30, Quantity:
- Price: $20, Quantity:
- Price: $10, Quantity:
Use the following graph to answer questions 11 through 14:
Let's call the original demand curve (from Question 4) D1 and the new demand curve (from Questions 6-10) D2. Plot both of the demand curves on the graph above.
Use the formulas for the two demand curves to compute the quantity demanded shown by each curve at a price of $34.
- Demand Curve D1: Price: $34, Quantity:
- Demand Curve D2: Price: $34, Quantity:
- Describe what has happened to demand in this problem.
Use the following information to answer questions 15 and 16:
Use the following two equations for the demand and supply curves to compute the
Demand curve:
Supply curve:
- What is the value of the equilibrium price?
- What is the
equilibrium quantity ?
Use the following information to answer questions 17 and 18:
Suppose Congress cuts personal income tax rates.
- Draw a simple supply and demand graph to show how this would affect the market for refrigerators.
- Why does this shift occur? How does that affect the equilibrium price and quantity? Explain.
Use the following information to answer questions 19 and 20:
Suppose that scooter workers accept a pay cut of 2 dollars per hour.
- Draw a graph to show how this would affect the market for scooters.
- Why does this shift occur? How does that affect the equilibrium price and quantity? Explain.
[1] This assignment by Lumen Learning is licensed under a Creative Commons Attribution 4.0 International License. You can access an alternative means to plotting points at https://www.desmos.com/calculator.
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