Find the marginal revenue function. R(x) = 7x – 0.05x² R'(x) =

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Author:James Stewart
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Chapter1: Functions And Models
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**Title: Calculating the Marginal Revenue Function**

**Content:**

The marginal revenue function is a crucial concept in economics, representing the additional revenue generated from selling one more unit of a good or service. This concept can be determined by differentiating the revenue function with respect to quantity \( x \).

**Task: Find the Marginal Revenue Function**

Given the revenue function:
\[ R(x) = 7x - 0.05x^2 \]

To find the marginal revenue function \( R'(x) \), differentiate the revenue function \( R(x) \) with respect to \( x \).

**Solution:**

Apply the power rule for differentiation:
\[ R'(x) = \frac{d}{dx}(7x) - \frac{d}{dx}(0.05x^2) \]

1. Differentiate \( 7x \):
   \[ \frac{d}{dx}(7x) = 7 \]

2. Differentiate \( 0.05x^2 \):
   \[ \frac{d}{dx}(0.05x^2) = 2 \times 0.05 \times x = 0.1x \]

Combine the results:
\[ R'(x) = 7 - 0.1x \]

Thus, the marginal revenue function is:
\[ R'(x) = 7 - 0.1x \]

This function indicates how the revenue changes with each additional unit sold.
Transcribed Image Text:**Title: Calculating the Marginal Revenue Function** **Content:** The marginal revenue function is a crucial concept in economics, representing the additional revenue generated from selling one more unit of a good or service. This concept can be determined by differentiating the revenue function with respect to quantity \( x \). **Task: Find the Marginal Revenue Function** Given the revenue function: \[ R(x) = 7x - 0.05x^2 \] To find the marginal revenue function \( R'(x) \), differentiate the revenue function \( R(x) \) with respect to \( x \). **Solution:** Apply the power rule for differentiation: \[ R'(x) = \frac{d}{dx}(7x) - \frac{d}{dx}(0.05x^2) \] 1. Differentiate \( 7x \): \[ \frac{d}{dx}(7x) = 7 \] 2. Differentiate \( 0.05x^2 \): \[ \frac{d}{dx}(0.05x^2) = 2 \times 0.05 \times x = 0.1x \] Combine the results: \[ R'(x) = 7 - 0.1x \] Thus, the marginal revenue function is: \[ R'(x) = 7 - 0.1x \] This function indicates how the revenue changes with each additional unit sold.
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