In figure 9.2 what is the marginal cost at a quality of 120 units? A.) 35 B 40 C 55 D 60 E 4,800

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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In figure 9.2 what is the marginal cost at a quality of 120 units?

A.) 35

B 40

C 55

D 60

E 4,800

## Cost Curves of a Firm

The figure below illustrates the cost curves of a firm.

### Figure 9.2: Cost Curves

**Graph Description:**
- **Axes:**
  - The vertical axis represents Cost (in dollars).
  - The horizontal axis represents Quantity.

- **Cost Curves:**
  - **MC (Marginal Cost):** This curve is upward-sloping, indicating the additional cost of producing one more unit.
  - **ATC (Average Total Cost):** This curve is U-shaped, representing the average cost per unit, which is initially high, decreases, and then rises again due to varying efficiencies.
  - **AVC (Average Variable Cost):** This curve is also U-shaped but below the ATC curve. It reflects the variable costs per unit and follows a similar pattern to ATC.

**Definitions:**
- **ATC (Average Total Cost):** Total cost divided by the quantity of output produced.
- **AVC (Average Variable Cost):** Variable cost divided by the quantity of output produced.
- **MC (Marginal Cost):** The cost of producing one additional unit of output.

These curves are essential for understanding the firm's cost structure and decision-making regarding production levels.
Transcribed Image Text:## Cost Curves of a Firm The figure below illustrates the cost curves of a firm. ### Figure 9.2: Cost Curves **Graph Description:** - **Axes:** - The vertical axis represents Cost (in dollars). - The horizontal axis represents Quantity. - **Cost Curves:** - **MC (Marginal Cost):** This curve is upward-sloping, indicating the additional cost of producing one more unit. - **ATC (Average Total Cost):** This curve is U-shaped, representing the average cost per unit, which is initially high, decreases, and then rises again due to varying efficiencies. - **AVC (Average Variable Cost):** This curve is also U-shaped but below the ATC curve. It reflects the variable costs per unit and follows a similar pattern to ATC. **Definitions:** - **ATC (Average Total Cost):** Total cost divided by the quantity of output produced. - **AVC (Average Variable Cost):** Variable cost divided by the quantity of output produced. - **MC (Marginal Cost):** The cost of producing one additional unit of output. These curves are essential for understanding the firm's cost structure and decision-making regarding production levels.
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