1. Which of the following show the correct angle and direction of rotation for the figure below? 270° clockwise 90° clockwise 180°clockwise 90° counterclockwise R Q 'S' R $

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Chapter2: Second-order Linear Odes
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Hello can you help me with this problem? Which of the following show the correct angle and direction of rotation for the figure below?

### Rotation of Figures in a Coordinate Plane

#### Question 1:
Which of the following show the correct angle and direction of rotation for the figure below?

#### Image Description:
A coordinate plane featuring a triangle with its vertices labeled as \( Q \), \( R \), and \( S \). The figure is rotated around the origin. The rotated figure has its vertices labeled as \( Q' \), \( R' \), and \( S' \).

#### Answer Choices:
- \( \circ \) 270° clockwise
- \( \circ \) 90° clockwise
- \( \circ \) 180° clockwise
- \( \circ \) 90° counterclockwise

### Explanation:

The coordinate plane shows two triangles:
1. The original triangle \( QRS \) positioned in the first quadrant.
2. The rotated triangle \( Q'R'S' \) positioned in the fourth quadrant.

#### Analysis of Rotation:
- The rotation appears to be around the origin (0,0).
- When rotating a figure:
  - 90° clockwise rotation moves a point (x, y) to (y, -x).
  - 180° clockwise rotation moves a point (x, y) to (-x, -y).
  - 270° clockwise rotation (equivalent to 90° counterclockwise) moves a point (x, y) to (-y, x).

By examining the positions:
- \( Q(x1, y1) \) has moved to \( Q’(y1, -x1) \) indicating a 90° clockwise rotation.
  
Hence, the correct answer is:
- \( \circ \) 90° clockwise
Transcribed Image Text:### Rotation of Figures in a Coordinate Plane #### Question 1: Which of the following show the correct angle and direction of rotation for the figure below? #### Image Description: A coordinate plane featuring a triangle with its vertices labeled as \( Q \), \( R \), and \( S \). The figure is rotated around the origin. The rotated figure has its vertices labeled as \( Q' \), \( R' \), and \( S' \). #### Answer Choices: - \( \circ \) 270° clockwise - \( \circ \) 90° clockwise - \( \circ \) 180° clockwise - \( \circ \) 90° counterclockwise ### Explanation: The coordinate plane shows two triangles: 1. The original triangle \( QRS \) positioned in the first quadrant. 2. The rotated triangle \( Q'R'S' \) positioned in the fourth quadrant. #### Analysis of Rotation: - The rotation appears to be around the origin (0,0). - When rotating a figure: - 90° clockwise rotation moves a point (x, y) to (y, -x). - 180° clockwise rotation moves a point (x, y) to (-x, -y). - 270° clockwise rotation (equivalent to 90° counterclockwise) moves a point (x, y) to (-y, x). By examining the positions: - \( Q(x1, y1) \) has moved to \( Q’(y1, -x1) \) indicating a 90° clockwise rotation. Hence, the correct answer is: - \( \circ \) 90° clockwise
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