Math Problem Statement

Which statement is true about the transformation of triangles T and T' in the given graph?

Solution

Let's break down the image to find the correct answer.

Analysis of the Triangles TT and TT'

  1. Triangle TT is larger and positioned to the left of the origin.
  2. Triangle TT' is smaller and positioned to the right of the origin.

We need to check if TT can be transformed into TT' by a combination of dilation and translation.

Step 1: Check the Scale Factor

  • Dilation is a transformation that changes the size of a figure by a scale factor.
  • Comparing TT and TT', we can see that TT' is smaller than TT.
  • It looks like TT' is approximately half the size of TT, suggesting a scale factor of 12\frac{1}{2}.

Step 2: Check the Translation

After applying a dilation with a scale factor of 12\frac{1}{2}, the resulting figure can be translated:

  • TT' is located about 3 units to the right of the origin compared to the scaled version of TT.

Step 3: Conclusion

Given the observations, the true statement should reflect:

  1. Dilation by a scale factor of 12\frac{1}{2}.
  2. Translation 3 units to the right.
  3. The triangles remain similar because dilation preserves similarity.

Correct Answer

The fourth option is correct:

  • "Since TT can be mapped to TT' using a dilation with a scale factor of 12\frac{1}{2} about the origin, followed by a translation 3 units to the right, the triangles are similar."

Would you like a detailed explanation of transformations or have any questions?

Related Questions:

  1. What is the definition of dilation and how does it affect shapes?
  2. How do you determine the scale factor of a dilation?
  3. What does it mean for two triangles to be similar?
  4. How do translations affect the coordinates of a figure?
  5. Can a dilation ever result in congruent figures?

Tip:

Dilation scales a figure by multiplying all its coordinates by the scale factor, while translations shift a figure without changing its size or shape.

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Math Problem Analysis

Mathematical Concepts

Geometric Transformations
Dilations
Translations
Similarity of Triangles

Formulas

(x, y) → (kx, ky) for dilation with scale factor k
(x, y) → (x + a, y + b) for translation

Theorems

Triangles remain similar under dilation with any scale factor

Suitable Grade Level

Grades 8-10