ENGR.ECONOMIC ANALYSIS
ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN: 9780190931919
Author: NEWNAN
Publisher: Oxford University Press
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The blue curve on the following graph represents the demand curve facing a firm that can set its own prices.

**Use the graph input tool to help you answer the following questions. You will not be graded on any changes you make to this graph.**

**Note:** Once you enter a value in a white field, the graph and any corresponding amounts in each grey field will change accordingly.

### Graph Input Tool
**Market for Goods**

- **Quantity Demanded (Units):** [input box]
- **Demand Price (Dollars per unit):** 125.00

The graph displays a demand curve with the following axes:
- **X-axis (Quantity in Units):** Ranges from 0 to 60
- **Y-axis (Price in Dollars per Unit):** Ranges from 0 to 250

The demand curve is downward sloping from a high price at low quantity to a lower price at higher quantity. There is a dashed line indicating a price level of $125.

### Instructions for Revenue Calculation

Use the graph input tool to change the number in the Quantity Demanded field to determine prices corresponding to outputs of 0, 10, 20, 25, 30, 40, and 50 units. Calculate total revenue for each level. Plot the results on the graph below using green points (triangle symbol).

### Total Revenue Graph
Axes:
- **X-axis (Quantity in Number of Units):** Ranges from 0 to 60
- **Y-axis (Total Revenue in Dollars):** Ranges from 0 to 3130

Use green triangles to plot total revenue based on the entered values from the graph input tool.

### Questions

1. Calculate total revenue if the firm produces 10 versus 9 units. Find the marginal revenue of the 10th unit produced.
   - **The marginal revenue of the 10th unit produced is:** [input box]

2. Calculate total revenue if the firm produces 20 versus 19 units. Find the marginal revenue of the 20th unit produced.
   - **The marginal revenue of the 20th unit produced is:** [input box]
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Transcribed Image Text:The blue curve on the following graph represents the demand curve facing a firm that can set its own prices. **Use the graph input tool to help you answer the following questions. You will not be graded on any changes you make to this graph.** **Note:** Once you enter a value in a white field, the graph and any corresponding amounts in each grey field will change accordingly. ### Graph Input Tool **Market for Goods** - **Quantity Demanded (Units):** [input box] - **Demand Price (Dollars per unit):** 125.00 The graph displays a demand curve with the following axes: - **X-axis (Quantity in Units):** Ranges from 0 to 60 - **Y-axis (Price in Dollars per Unit):** Ranges from 0 to 250 The demand curve is downward sloping from a high price at low quantity to a lower price at higher quantity. There is a dashed line indicating a price level of $125. ### Instructions for Revenue Calculation Use the graph input tool to change the number in the Quantity Demanded field to determine prices corresponding to outputs of 0, 10, 20, 25, 30, 40, and 50 units. Calculate total revenue for each level. Plot the results on the graph below using green points (triangle symbol). ### Total Revenue Graph Axes: - **X-axis (Quantity in Number of Units):** Ranges from 0 to 60 - **Y-axis (Total Revenue in Dollars):** Ranges from 0 to 3130 Use green triangles to plot total revenue based on the entered values from the graph input tool. ### Questions 1. Calculate total revenue if the firm produces 10 versus 9 units. Find the marginal revenue of the 10th unit produced. - **The marginal revenue of the 10th unit produced is:** [input box] 2. Calculate total revenue if the firm produces 20 versus 19 units. Find the marginal revenue of the 20th unit produced. - **The marginal revenue of the 20th unit produced is:** [input box]
Based on your answers from the previous question, and assuming that the marginal revenue curve is a straight line, use the black line (plus symbol) to plot the firm’s marginal revenue curve on the following graph. (Round all values to the nearest increment of 50.)

**Graph Explanation:**

- The graph is a coordinate plane illustrating "MARGINAL REVENUE (Dollars)" on the vertical axis and "QUANTITY (Units)" on the horizontal axis.
- The vertical axis ranges from -50 to 250, with increments of 50.
- The horizontal axis ranges from 0 to 50, with increments of 5.
- There is a flat black horizontal line representing "Marginal Revenue" at the 0 level on the graph, indicating constant marginal revenue across different quantities.

Comparing your total revenue graph to your marginal revenue graph, you can see that when total revenue is decreasing, marginal revenue is ________.
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Transcribed Image Text:Based on your answers from the previous question, and assuming that the marginal revenue curve is a straight line, use the black line (plus symbol) to plot the firm’s marginal revenue curve on the following graph. (Round all values to the nearest increment of 50.) **Graph Explanation:** - The graph is a coordinate plane illustrating "MARGINAL REVENUE (Dollars)" on the vertical axis and "QUANTITY (Units)" on the horizontal axis. - The vertical axis ranges from -50 to 250, with increments of 50. - The horizontal axis ranges from 0 to 50, with increments of 5. - There is a flat black horizontal line representing "Marginal Revenue" at the 0 level on the graph, indicating constant marginal revenue across different quantities. Comparing your total revenue graph to your marginal revenue graph, you can see that when total revenue is decreasing, marginal revenue is ________.
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