Construct an equation from the values given in the table. y 1 2 13 18 4 23

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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**Title: Constructing a Linear Equation from a Data Table**

**Objective:**
Learn how to construct a linear equation using a set of values provided in a table.

**Table of Values:**

| x | y  |
|---|----|
| 1 | 8  |
| 2 | 13 |
| 3 | 18 |
| 4 | 23 |

**Instructions:**

1. **Identify the Pattern:**
   - Observe the change in the y-values as x increases. Calculate the difference between consecutive y-values to determine the rate of change.

2. **Calculate the Slope:**
   - The difference (or change) between y-values for each increase of 1 in x is constant. Here, it is 5.
   - This constant change is the slope (m) of the linear equation, which can be represented as: 
     \[
     m = \frac{{\Delta y}}{{\Delta x}} = 5
     \]

3. **Determine the Y-Intercept (b):**
   - Use one of the points to find the y-intercept. For example, using the point (1, 8) and the slope (5):
     - Plug into the formula \( y = mx + b \):
     - \( 8 = 5(1) + b \)
     - \( 8 = 5 + b \)
     - \( b = 3 \)

4. **Construct the Equation:**
   - Substitute the slope (m) and the y-intercept (b) into the linear equation formula:
   - \( y = 5x + 3 \)

**Conclusion:**
The equation derived from the table values is \( y = 5x + 3 \). This linear relationship indicates that for every unit increase in \( x \), \( y \) increases by 5.
Transcribed Image Text:**Title: Constructing a Linear Equation from a Data Table** **Objective:** Learn how to construct a linear equation using a set of values provided in a table. **Table of Values:** | x | y | |---|----| | 1 | 8 | | 2 | 13 | | 3 | 18 | | 4 | 23 | **Instructions:** 1. **Identify the Pattern:** - Observe the change in the y-values as x increases. Calculate the difference between consecutive y-values to determine the rate of change. 2. **Calculate the Slope:** - The difference (or change) between y-values for each increase of 1 in x is constant. Here, it is 5. - This constant change is the slope (m) of the linear equation, which can be represented as: \[ m = \frac{{\Delta y}}{{\Delta x}} = 5 \] 3. **Determine the Y-Intercept (b):** - Use one of the points to find the y-intercept. For example, using the point (1, 8) and the slope (5): - Plug into the formula \( y = mx + b \): - \( 8 = 5(1) + b \) - \( 8 = 5 + b \) - \( b = 3 \) 4. **Construct the Equation:** - Substitute the slope (m) and the y-intercept (b) into the linear equation formula: - \( y = 5x + 3 \) **Conclusion:** The equation derived from the table values is \( y = 5x + 3 \). This linear relationship indicates that for every unit increase in \( x \), \( y \) increases by 5.
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