Math Problem Statement

Which sequence of transformations maps OPQR onto O'P'Q'R'?

Solution

The image shows two quadrilaterals, OPQROPQR and OPQRO'P'Q'R', along with a question asking to identify the sequence of transformations that maps OPQROPQR onto OPQRO'P'Q'R'. The transformations to choose from involve translations, rotations, and reflections.

To analyze the transformation:

  1. Position of OPQROPQR and OPQRO'P'Q'R':

    • OPQROPQR is in the second quadrant (coordinates are negative for xx-values).
    • OPQRO'P'Q'R' is in the first quadrant (positive xx-values).
  2. Possible transformations:

    • Translation: There is a clear shift horizontally and vertically from OPQROPQR to OPQRO'P'Q'R'.
    • Reflection: Since the shapes are mirrored across either axis (most likely across the yy-axis).
    • Rotation: It's also possible that a rotation was involved based on their relative positioning.

Examining each choice:

  • Option 1: "A translation left 12 units followed by a reflection across the xx-axis."
    This doesn't seem correct because the shapes are not mirrored across the xx-axis.

  • Option 2: "A rotation 90° clockwise around the origin followed by a translation up 12 units."
    This option seems plausible because rotating OPQROPQR by 90° clockwise would align its orientation with OPQRO'P'Q'R', and then a translation upward could place it correctly.

  • Option 3: "A translation left 2 units and up 9 units followed by a reflection across the yy-axis."
    This doesn't seem accurate, as the translation described here doesn't align the two shapes perfectly.

Correct Answer:

Option 2: A rotation of 90° clockwise around the origin, followed by a translation up 12 units, maps OPQROPQR onto OPQRO'P'Q'R'.

Would you like further details on this transformation process, or do you have any specific questions?

Here are 5 related questions to explore this topic further:

  1. How do you determine the center of rotation for a geometric transformation?
  2. What are the rules for reflections across the xx- and yy-axes?
  3. How do you identify if a shape has undergone a translation only?
  4. What is the difference between a 90° clockwise and counterclockwise rotation?
  5. How can you calculate the distance between corresponding points after a translation?

Tip: When dealing with transformations, always check if a reflection or rotation is involved by comparing the orientation and relative position of corresponding points.

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Math Problem Analysis

Mathematical Concepts

Transformations
Translations
Rotations
Reflections

Formulas

Rotation by 90° clockwise around the origin
Translation up and down on the coordinate plane
Reflection across axes

Theorems

Congruence Transformations
Coordinate Plane Transformations

Suitable Grade Level

Grades 8-10