Math Problem Statement

Write the coordinates of the vertices after a dilation with a scale factor of 5 about the origin.

Solution

The image shows a rectangular figure on a coordinate plane, and the problem asks for the coordinates of the vertices after a dilation with a scale factor of 5 about the origin. Let's proceed with solving the problem step by step.

Step 1: Identify the current coordinates of the vertices

From the image, the coordinates of the vertices appear to be:

  • C(2,2)C(-2, 2)
  • D(2,2)D(2, 2)
  • F(2,2)F(2, -2)
  • B(2,2)B(-2, -2)

Step 2: Apply the dilation formula

The formula for dilation about the origin with a scale factor kk is: (x,y)=(kx,ky)(x', y') = (k \cdot x, k \cdot y) Given the scale factor k=5k = 5, we will multiply each vertex's coordinates by 5.

Step 3: Find the new coordinates after dilation

  1. For vertex C(2,2)C(-2, 2): C=(5(2),52)=(10,10)C' = (5 \cdot (-2), 5 \cdot 2) = (-10, 10)

  2. For vertex D(2,2)D(2, 2): D=(52,52)=(10,10)D' = (5 \cdot 2, 5 \cdot 2) = (10, 10)

  3. For vertex F(2,2)F(2, -2): F=(52,5(2))=(10,10)F' = (5 \cdot 2, 5 \cdot (-2)) = (10, -10)

  4. For vertex B(2,2)B(-2, -2): B=(5(2),5(2))=(10,10)B' = (5 \cdot (-2), 5 \cdot (-2)) = (-10, -10)

Final Coordinates after Dilation:

  • C(10,10)C'(-10, 10)
  • D(10,10)D'(10, 10)
  • F(10,10)F'(10, -10)
  • B(10,10)B'(-10, -10)

These are the new coordinates of the vertices after dilation.

Would you like further details or have any questions? Here are some related questions to practice:

  1. What happens to the area of the figure after the dilation with a scale factor of 5?
  2. How would the coordinates change if the scale factor was 5-5 instead of 5?
  3. How do you determine the center of dilation from a transformation?
  4. How would a translation affect the dilated image?
  5. What would be the result of applying a reflection after dilation?

Tip: Dilation enlarges or reduces the size of a figure, but preserves its shape and orientation if the scale factor is positive.

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Math Problem Analysis

Mathematical Concepts

Dilation
Transformations
Coordinate Geometry

Formulas

Dilation Formula: (x', y') = (k * x, k * y)

Theorems

Dilation Theorem (Scaling with respect to origin)

Suitable Grade Level

Grades 8-10