Math Problem Statement

The figure below is dilated by a factor of 4/3 centered at the origin. Plot the resulting image.

Solution

The figure in the image needs to be dilated by a factor of 43\frac{4}{3}, centered at the origin. This means that every point in the figure will be scaled outward from the origin by this factor. To calculate the new coordinates of each point after dilation, multiply the coordinates of each point by 43\frac{4}{3}.

Let's analyze the coordinates of the points UU, TT, RR, and SS before the dilation:

  • U(6,2)U(-6, 2)
  • T(0,1)T(0, 1)
  • R(6,4)R(-6, -4)
  • S(4,3)S(4, -3)

Now, applying the dilation factor 43\frac{4}{3}:

  1. Dilating U(6,2)U(-6, 2): U=(6×43,2×43)=(8,83)(8,2.67)U' = \left( -6 \times \frac{4}{3}, 2 \times \frac{4}{3} \right) = (-8, \frac{8}{3}) \approx (-8, 2.67)

  2. Dilating T(0,1)T(0, 1): T=(0×43,1×43)=(0,43)(0,1.33)T' = \left( 0 \times \frac{4}{3}, 1 \times \frac{4}{3} \right) = (0, \frac{4}{3}) \approx (0, 1.33)

  3. Dilating R(6,4)R(-6, -4): R=(6×43,4×43)=(8,163)(8,5.33)R' = \left( -6 \times \frac{4}{3}, -4 \times \frac{4}{3} \right) = (-8, -\frac{16}{3}) \approx (-8, -5.33)

  4. Dilating S(4,3)S(4, -3): S=(4×43,3×43)=(163,123)(5.33,4)S' = \left( 4 \times \frac{4}{3}, -3 \times \frac{4}{3} \right) = \left( \frac{16}{3}, -\frac{12}{3} \right) \approx (5.33, -4)

New Coordinates after Dilation:

  • U(8,2.67)U'(-8, 2.67)
  • T(0,1.33)T'(0, 1.33)
  • R(8,5.33)R'(-8, -5.33)
  • S(5.33,4)S'(5.33, -4)

Would you like me to plot the resulting image with these new points, or explain the dilation process in further detail?

Here are 5 related questions:

  1. What happens to the angles of a figure when dilated?
  2. How does dilation affect the orientation of a figure?
  3. How would the figure change if the dilation factor was less than 1?
  4. Can you explain why dilation preserves the shape of a figure?
  5. How is dilation different from other transformations like translation or reflection?

Tip: When dilating around the origin, every point on the figure moves along a straight line extending from the origin, with distances scaled by the dilation factor.

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Math Problem Analysis

Mathematical Concepts

Geometry
Transformations
Dilation
Coordinate Geometry

Formulas

Dilation formula: (x', y') = (k * x, k * y)
Where k is the dilation factor

Theorems

Dilation Theorem: A dilation is a transformation that produces an image that is the same shape as the original, but is a different size.

Suitable Grade Level

Grades 8-10