Math Problem Statement

Solve a geometric puzzle involving reflections, rotations, and dilations of points on a coordinate plane. The puzzle asks to reflect, rotate, and dilate specific points, and then match the transformed coordinates to given answer choices.

Solution

Let's solve Puzzle #5 step-by-step.

Step 1: Reflect Point 2 over the line y=xy = x

  • Original Point 2: (2,2)(-2, 2)
  • Reflection over y=xy = x: Swap the coordinates, so it becomes (2,2)(2, -2).

Step 2: Rotate Point 3 by 90° clockwise around the origin

  • Original Point 3: (2,3)(-2, 3)
  • 90° clockwise rotation formula: (x,y)(x, y) becomes (y,x)(y, -x).
  • Applying this: (2,3)(-2, 3) becomes (3,2)(3, 2).

Step 3: Rotate Point 1 by 180° around the origin

  • Original Point 1: (0,2)(0, 2)
  • 180° rotation formula: (x,y)(x, y) becomes (x,y)(-x, -y).
  • Applying this: (0,2)(0, 2) becomes (0,2)(0, -2).

Step 4: Dilate Point 4 by a scale factor of 3 from the origin

  • Original Point 4: (1,1)(1, -1)
  • Dilation by scale factor 3: Multiply both coordinates by 3.
  • Applying this: (1,1)(1, -1) becomes (3,3)(3, -3).

Summary of transformed points:

  1. Point 2 after reflection: (2,2)(2, -2)
  2. Point 3 after rotation: (3,2)(3, 2)
  3. Point 1 after rotation: (0,2)(0, -2)
  4. Point 4 after dilation: (3,3)(3, -3)

Answer choices:

Now, let's match these transformed points with the options:

  • A: (2,3)(2, -3)
  • B: (6,1)(6, -1)
  • C: (5,1)(5, 1)
  • D: (2,5)(2, 5)
  • E: (2,3)(-2, -3)
  • F: (3,6)(3, 6)
  • G: (6,1)(6, 1)
  • H: (1,5)(1, -5)
  • I: (5,6)(5, -6)

Matching the points to the answer choices:

  • (2,2)(2, -2) doesn't directly match any option.
  • (3,2)(3, 2) matches option F.
  • (0,2)(0, -2) doesn't directly match any option.
  • (3,3)(3, -3) doesn't directly match any option.

Based on this, F is part of the answer, but we would need to review the process to fully match the correct points.

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Math Problem Analysis

Mathematical Concepts

Geometry
Transformations
Coordinate Plane

Formulas

Reflection over y = x: Swap the coordinates (x, y) becomes (y, x)
90° clockwise rotation: (x, y) becomes (y, -x)
180° rotation: (x, y) becomes (-x, -y)
Dilation from origin by scale factor k: (x, y) becomes (kx, ky)

Theorems

Transformation Rules
Rotation Theorems

Suitable Grade Level

Grades 8-10