Math Problem Statement

Dilate segment AB using a scale factor of 2 and the origin, (0, 0), as the center of dilation. Then, record the coordinates of the points in the image.

Solution

To solve the problem of dilating segment ABAB using a scale factor of 2 and the origin (0,0)(0, 0) as the center of dilation, we need to perform the following steps:

  1. Identify the coordinates of points AA and BB:

    • From the image, the coordinates of point AA are (4,2)(-4, 2).
    • The coordinates of point BB are (2,4)(2, -4).
  2. Apply the dilation transformation with a scale factor of 2:

    • For dilation with the center at the origin (0,0)(0, 0), the new coordinates of each point after dilation are given by multiplying both the xx-coordinate and the yy-coordinate by the scale factor.

    • For point AA at (4,2)(-4, 2): A=(2×(4),2×2)=(8,4)A' = (2 \times (-4), 2 \times 2) = (-8, 4)

    • For point BB at (2,4)(2, -4): B=(2×2,2×(4))=(4,8)B' = (2 \times 2, 2 \times (-4)) = (4, -8)

  3. Record the new coordinates:

    • The new coordinates of point AA' are (8,4)(-8, 4).
    • The new coordinates of point BB' are (4,8)(4, -8).

So, after the dilation, the coordinates of points AA' and BB' are:

  • A=(8,4)A' = (-8, 4)
  • B=(4,8)B' = (4, -8)

Let me know if you would like a detailed explanation or have further questions!

Here are some questions to expand on this:

  1. How would the dilation change if the scale factor was 0.5?
  2. What are the properties of dilation in terms of preserving shapes?
  3. How can we generalize the dilation process for any point P(x,y)P(x, y)?
  4. How does changing the center of dilation affect the final coordinates?
  5. What other transformations can we perform on this figure, such as rotation or reflection?

Tip: In a dilation, the distances between the points and the center of dilation change proportionally to the scale factor, but angles and relative proportions remain the same!

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Math Problem Analysis

Mathematical Concepts

Geometry
Dilation
Coordinate Geometry

Formulas

Dilation formula: (x', y') = (k * x, k * y) where k is the scale factor

Theorems

Dilation Theorem

Suitable Grade Level

Grades 8-10