third-degree polynomial

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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### Stock Value Analysis

#### Problem Statement

The price of Tommy Hilfiger stock during a 4-hour period is given below. If a third-degree polynomial models this stock, do you expect the stock to go up or down in the fifth period?

#### Data Representation

The table below shows the price of Tommy Hilfiger stock over a 4-hour period:

<table>
  <thead>
    <tr>
      <th>Period Watching Stock Market</th>
      <th>Price</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>1</td>
      <td>$15.10</td>
    </tr>
    <tr>
      <td>2</td>
      <td>$14.76</td>
    </tr>
    <tr>
      <td>3</td>
      <td>$15.50</td>
    </tr>
    <tr>
      <td>4</td>
      <td>$14.85</td>
    </tr>
  </tbody>
</table>

### Analysis and Considerations

To determine whether the stock price will go up or down in the fifth period using a third-degree polynomial model, we need to consider the trend displayed by the given data points. 

#### Approach:

1. **Plot the Data and Fit a Polynomial:**
   Fit a third-degree polynomial to the data points. The general form of a third-degree polynomial is:
   \[
   P(x) = ax^3 + bx^2 + cx + d
   \]

2. **Examine the Polynomial:**
   By fitting the polynomial to the data points for periods 1 to 4, we can evaluate the polynomial at \( x = 5 \) to predict the stock price in the fifth period.

3. **Trend Analysis:**
   Observe the polynomial's behavior around the previous data points to infer the trend and assess if the general direction is increasing or decreasing.

#### Conclusion

By following this approach, we can predict if the Tommy Hilfiger stock price will go up or down in the fifth period using third-degree polynomial modeling techniques.
Transcribed Image Text:### Stock Value Analysis #### Problem Statement The price of Tommy Hilfiger stock during a 4-hour period is given below. If a third-degree polynomial models this stock, do you expect the stock to go up or down in the fifth period? #### Data Representation The table below shows the price of Tommy Hilfiger stock over a 4-hour period: <table> <thead> <tr> <th>Period Watching Stock Market</th> <th>Price</th> </tr> </thead> <tbody> <tr> <td>1</td> <td>$15.10</td> </tr> <tr> <td>2</td> <td>$14.76</td> </tr> <tr> <td>3</td> <td>$15.50</td> </tr> <tr> <td>4</td> <td>$14.85</td> </tr> </tbody> </table> ### Analysis and Considerations To determine whether the stock price will go up or down in the fifth period using a third-degree polynomial model, we need to consider the trend displayed by the given data points. #### Approach: 1. **Plot the Data and Fit a Polynomial:** Fit a third-degree polynomial to the data points. The general form of a third-degree polynomial is: \[ P(x) = ax^3 + bx^2 + cx + d \] 2. **Examine the Polynomial:** By fitting the polynomial to the data points for periods 1 to 4, we can evaluate the polynomial at \( x = 5 \) to predict the stock price in the fifth period. 3. **Trend Analysis:** Observe the polynomial's behavior around the previous data points to infer the trend and assess if the general direction is increasing or decreasing. #### Conclusion By following this approach, we can predict if the Tommy Hilfiger stock price will go up or down in the fifth period using third-degree polynomial modeling techniques.
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