-2 -6- X G

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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### Domain and Range Analysis

**Objective:**
To determine the domain and range of the given graph and use it to find specific values.

**Graph Analysis:**
The graph provided on the right shows a function plotted on a Cartesian plane with the x-axis and y-axis labeled from -6 to 6. The graph passes through several points within this coordinate range.

**Domain and Range:**
- The **domain** of the graph is the set of all possible \( x \)-values for which the graph is defined. 
  - **Domain: \([-3, 5]\)**
  
- The **range** of the graph is the set of all possible \( y \)-values that the graph can take.
  - **Range: \([-2, 2]\)**

**Tasks:**
Use the graph to find the following function values:

1. **Find \( f(-3) \)**:
    - From the graph, locate \( x = -3 \) and determine the corresponding \( y \)-value.
    - **\( f(-3) = -2 \)**

2. **Find \( f(0) \)**:
    - From the graph, locate \( x = 0 \) and determine the corresponding \( y \)-value.
    - **\( f(0) = 1 \)**

3. **Find \( f\left(\frac{1}{2}\right) \)**:
    - From the graph, locate \( x = \frac{1}{2} \) and determine the corresponding \( y \)-value.
    - **\( f\left(\frac{1}{2}\right) = \) [Value needs to be determined from the given graph]**

**Graph Explanation:**
- The graph is a curve that traverses through different quadrants.
- The specified domain \([-3,5]\) means that the graph starts from \( x = -3 \) and ends at \( x = 5 \).
- The specified range \([-2,2]\) indicates that the \( y \)-values of the graph range from \(-2\) to \(2\).

By analyzing the graph accordingly, one can determine the exact values for various function inputs as requested.
Transcribed Image Text:### Domain and Range Analysis **Objective:** To determine the domain and range of the given graph and use it to find specific values. **Graph Analysis:** The graph provided on the right shows a function plotted on a Cartesian plane with the x-axis and y-axis labeled from -6 to 6. The graph passes through several points within this coordinate range. **Domain and Range:** - The **domain** of the graph is the set of all possible \( x \)-values for which the graph is defined. - **Domain: \([-3, 5]\)** - The **range** of the graph is the set of all possible \( y \)-values that the graph can take. - **Range: \([-2, 2]\)** **Tasks:** Use the graph to find the following function values: 1. **Find \( f(-3) \)**: - From the graph, locate \( x = -3 \) and determine the corresponding \( y \)-value. - **\( f(-3) = -2 \)** 2. **Find \( f(0) \)**: - From the graph, locate \( x = 0 \) and determine the corresponding \( y \)-value. - **\( f(0) = 1 \)** 3. **Find \( f\left(\frac{1}{2}\right) \)**: - From the graph, locate \( x = \frac{1}{2} \) and determine the corresponding \( y \)-value. - **\( f\left(\frac{1}{2}\right) = \) [Value needs to be determined from the given graph]** **Graph Explanation:** - The graph is a curve that traverses through different quadrants. - The specified domain \([-3,5]\) means that the graph starts from \( x = -3 \) and ends at \( x = 5 \). - The specified range \([-2,2]\) indicates that the \( y \)-values of the graph range from \(-2\) to \(2\). By analyzing the graph accordingly, one can determine the exact values for various function inputs as requested.
### Linear Graph Representation

In this educational module, we will explore the linear graph depicted above. A graph is a visual representation of data and functions that provide insights into trends and relationships between variables.

#### Graph Analysis

The graph shown represents a linear relationship between two variables, typically denoted as \( x \) (horizontal axis) and \( y \) (vertical axis).

- **Axes and Grid:**
  - The horizontal axis (x-axis) is labeled from -6 to 6.
  - The vertical axis (y-axis) is labeled from -4 to 6.
  - Both axes are marked with evenly spaced grid lines for better visualization and accuracy of data points.
  
- **Line Representation:**
  - The line on the graph starts at the point (-4, -2) and passes through to the point (4, 4).
  - This suggests a positive linear relationship, meaning as the value of \( x \) increases, the value of \( y \) also increases.

#### Components of the Graph:

1. **Origin:** The point where the x-axis and y-axis intersect is known as the origin, which is at the coordinate (0,0).
 
2. **Slope:** The slope of the line can be calculated by the formula: 
   
   \[ \text{slope} = \frac{\Delta y}{\Delta x} \]
   , which is the change in \( y \) divided by the change in \( x \). Visually, it represents how steep the line is.

3. **Intercepts:**
   - **Y-intercept:** The value where the line crosses the y-axis. For this graph, it appears this value might be around (-3,0), but we would need more data points.
   - **X-intercept:** The value where the line crosses the x-axis. For this graph, it seems to occur around (2.6,0).

#### Conclusion:
This linear graph is a simple yet powerful representation of how the y-variable changes as the x-variable changes. Understanding how to interpret and create such graphs is fundamental in many areas of mathematics, science, and engineering.
Transcribed Image Text:### Linear Graph Representation In this educational module, we will explore the linear graph depicted above. A graph is a visual representation of data and functions that provide insights into trends and relationships between variables. #### Graph Analysis The graph shown represents a linear relationship between two variables, typically denoted as \( x \) (horizontal axis) and \( y \) (vertical axis). - **Axes and Grid:** - The horizontal axis (x-axis) is labeled from -6 to 6. - The vertical axis (y-axis) is labeled from -4 to 6. - Both axes are marked with evenly spaced grid lines for better visualization and accuracy of data points. - **Line Representation:** - The line on the graph starts at the point (-4, -2) and passes through to the point (4, 4). - This suggests a positive linear relationship, meaning as the value of \( x \) increases, the value of \( y \) also increases. #### Components of the Graph: 1. **Origin:** The point where the x-axis and y-axis intersect is known as the origin, which is at the coordinate (0,0). 2. **Slope:** The slope of the line can be calculated by the formula: \[ \text{slope} = \frac{\Delta y}{\Delta x} \] , which is the change in \( y \) divided by the change in \( x \). Visually, it represents how steep the line is. 3. **Intercepts:** - **Y-intercept:** The value where the line crosses the y-axis. For this graph, it appears this value might be around (-3,0), but we would need more data points. - **X-intercept:** The value where the line crosses the x-axis. For this graph, it seems to occur around (2.6,0). #### Conclusion: This linear graph is a simple yet powerful representation of how the y-variable changes as the x-variable changes. Understanding how to interpret and create such graphs is fundamental in many areas of mathematics, science, and engineering.
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