Math Problem Statement
A triangle has vertices at A (−2, −2), B (−1, 1), and C (3, 2). Which of the following transformations produces an image with vertices A′ (2, −2), B′ (1, 1), and C′ (−3, 2)?
(x, y) → (x, −y) (x, y) → (−y, x) (x, y) → (−x, y) (x, y) → (y, −x)
Solution
To determine which transformation produces the given result, let us analyze how the original vertices are transformed to the new vertices:
Original Vertices and Transformed Vertices:
- A (−2, −2) → A′ (2, −2)
- B (−1, 1) → B′ (1, 1)
- C (3, 2) → C′ (−3, 2)
Testing the Transformations:
Option 1:
- A(−2, −2) → (−2, 2) → Incorrect.
- This does not match the transformation.
Option 2:
- A(−2, −2) → (2, −2) → Matches!
- B(−1, 1) → (−1, 1) → Matches!
- C(3, 2) → (−3, 2) → Matches!
- This transformation is consistent with all vertices.
Option 3:
- A(−2, −2) → (2, −2) → Incorrect.
- This does not match the transformation.
Option 4:
- A(−2, −2) → (−2, 2) → Incorrect.
- This does not match the transformation.
Correct Answer:
The transformation that produces the given image is: .
Would you like further details or additional examples to explore this concept?
Related Questions:
- How do you verify transformations using matrix representation?
- What is the geometric meaning of in terms of rotation?
- How do transformations affect the area of a triangle?
- How can you identify a transformation when given a specific shape or figure?
- What are other common transformations involving reflections and rotations?
Tip: To analyze transformations effectively, always test one vertex at a time systematically.
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Math Problem Analysis
Mathematical Concepts
Geometry
Coordinate Transformations
Reflections and Rotations
Formulas
(x, y) → (−y, x)
(x, y) → (x, −y)
(x, y) → (−x, y)
(x, y) → (y, −x)
Theorems
Properties of Coordinate Transformations
Triangle Transformation and Mapping
Suitable Grade Level
Grades 9-11
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