Math Problem Statement

If you were to rotate ABCD 180° about the origin, what would the coordinate of A' be?

Solution

To determine the coordinates of point AA' after a 180° rotation about the origin, let's go through the steps.

Steps to Solve

  1. Identify the Original Coordinates of Point A: Based on the image, it appears that point AA is located at (3,5)(3, 5).

  2. Apply the Rotation Transformation: For a 180° rotation about the origin, the transformation rule is: (x,y)(x,y)(x, y) \rightarrow (-x, -y) So, we take the coordinates (3,5)(3, 5) and apply this transformation: (3,5)(3,5)(3, 5) \rightarrow (-3, -5)

  3. Verify the Answer: The new coordinates of AA' after a 180° rotation about the origin would be (3,5)(-3, -5).

Conclusion

The correct answer is:

  • (3,5)(-3, -5)

Would you like more details on rotation transformations or have any further questions?


Here are some related questions to expand your understanding:

  1. What are the rotation rules for 90° and 270° about the origin?
  2. How do the coordinates change with a 180° rotation about a point other than the origin?
  3. What is the effect of a 180° rotation on the orientation of a shape?
  4. Can you apply a rotation transformation to points in 3D space?
  5. How does rotating a point affect its distance from the origin?

Tip: For any 180° rotation, simply negate both the x- and y-coordinates of a point.

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Math Problem Analysis

Mathematical Concepts

Coordinate Geometry
Rotation Transformations

Formulas

(x, y) → (-x, -y) for a 180° rotation about the origin

Theorems

Rotation Theorem for 180° about the Origin

Suitable Grade Level

Grades 8-10