Consider the following figure. Dilate the figure about the origin with a scale factor of and then reflect the figure over the line y =-x.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Transcription and Explanation for Educational Website:

### Transformation Exercises

**Exercise 1:**
- **Task:** Consider the following figure. Dilate the figure about the origin with a scale factor of \( \frac{1}{2} \) and then reflect the figure over the line \( y = -x \).
- **Diagram Description:**
  - A grid representing the coordinate plane with labeled axes \( x \) and \( y \).
  - A quadrilateral is drawn on the plane, initially in the positive quadrant. 
  - The goal is to perform a dilation with the specified scale factor and a reflection over the specified line.

**Exercise 2:**
- **Task:** Consider the following figure. Dilate the figure about the point \((-7, -7)\) with a scale factor of 2 and then reflect the figure over the y-axis.
- **Diagram Description:**
  - A similar coordinate plane grid with labeled axes.
  - A quadrilateral is positioned, indicating initial placement before transformation.
  - The required transformations are to perform dilation from a specific point and then reflect over the y-axis.

### Independent Practice Question:

1. **Which of the following is not a composition of isometries?**

   A. Reflection over \( x = 2 \), then rotation 90° clockwise about the origin  
   B. Dilation with scale factor \( \frac{1}{2} \), then rotation 270° clockwise about the origin  
   C. Translation \((x, y) \rightarrow (x + 11)\), then reflection over the x-axis  

### Graphs and Diagrams Explanation:
- Both diagrams show quadrilaterals on coordinate planes with instructions for specific transformations that change the position, size, or orientation of the quadrilaterals.
- Axes in each diagram are marked with arrows to indicate direction, and grid lines help in visualizing the transformations precisely. These visual aids are crucial for understanding geometric transformations such as dilations and reflections.
Transcribed Image Text:Transcription and Explanation for Educational Website: ### Transformation Exercises **Exercise 1:** - **Task:** Consider the following figure. Dilate the figure about the origin with a scale factor of \( \frac{1}{2} \) and then reflect the figure over the line \( y = -x \). - **Diagram Description:** - A grid representing the coordinate plane with labeled axes \( x \) and \( y \). - A quadrilateral is drawn on the plane, initially in the positive quadrant. - The goal is to perform a dilation with the specified scale factor and a reflection over the specified line. **Exercise 2:** - **Task:** Consider the following figure. Dilate the figure about the point \((-7, -7)\) with a scale factor of 2 and then reflect the figure over the y-axis. - **Diagram Description:** - A similar coordinate plane grid with labeled axes. - A quadrilateral is positioned, indicating initial placement before transformation. - The required transformations are to perform dilation from a specific point and then reflect over the y-axis. ### Independent Practice Question: 1. **Which of the following is not a composition of isometries?** A. Reflection over \( x = 2 \), then rotation 90° clockwise about the origin B. Dilation with scale factor \( \frac{1}{2} \), then rotation 270° clockwise about the origin C. Translation \((x, y) \rightarrow (x + 11)\), then reflection over the x-axis ### Graphs and Diagrams Explanation: - Both diagrams show quadrilaterals on coordinate planes with instructions for specific transformations that change the position, size, or orientation of the quadrilaterals. - Axes in each diagram are marked with arrows to indicate direction, and grid lines help in visualizing the transformations precisely. These visual aids are crucial for understanding geometric transformations such as dilations and reflections.
Sure, here's a transcription of the text and description of the graph as if it will appear on an educational website:

---

**Question:**

4. If you are limited to three rigid transformations, describe a composition of transformations that will carry the polygon onto itself. Write the composition of transformations using proper notation.

**Graph Description:**

The graph shows a coordinate plane with the x-axis and y-axis intersecting at the origin. There is a polygon located in the first quadrant. The polygon resembles a trapezoid with vertices approximately at the coordinates (2, 6), (4, 6), (6, 8), and (2, 8).

The grid is marked with a range from -10 to 10 on both the x and y axes. The x-axis is labeled horizontally, and the y-axis is labeled vertically.

**Diagram Analysis:**

To solve the problem, you need to use rigid transformations such as translations, rotations, or reflections to map the polygon onto itself. Proper transformation notation should be used in the solution.

**Note:**
The graph and its elements serve as a visual aid to help you understand and describe the transformations needed to map the polygon onto itself using the given constraints (three rigid transformations).

---
Transcribed Image Text:Sure, here's a transcription of the text and description of the graph as if it will appear on an educational website: --- **Question:** 4. If you are limited to three rigid transformations, describe a composition of transformations that will carry the polygon onto itself. Write the composition of transformations using proper notation. **Graph Description:** The graph shows a coordinate plane with the x-axis and y-axis intersecting at the origin. There is a polygon located in the first quadrant. The polygon resembles a trapezoid with vertices approximately at the coordinates (2, 6), (4, 6), (6, 8), and (2, 8). The grid is marked with a range from -10 to 10 on both the x and y axes. The x-axis is labeled horizontally, and the y-axis is labeled vertically. **Diagram Analysis:** To solve the problem, you need to use rigid transformations such as translations, rotations, or reflections to map the polygon onto itself. Proper transformation notation should be used in the solution. **Note:** The graph and its elements serve as a visual aid to help you understand and describe the transformations needed to map the polygon onto itself using the given constraints (three rigid transformations). ---
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