CCSS IP Math II 5.2.2 Example 2

Author:
GeoGebra Materials Team, Walch Education
Topic:
Dilation
A triangle has vertices , , and . If the triangle is dilated by a scale factor of through center , what are the image vertices? Draw the preimage and image on the coordinate plane.
  1. Start with one vertex and multiply each coordinate by the scale factor, .
  2. Repeat the process with another vertex. Multiply each coordinate of the vertex by the scale factor.
  3. Repeat the process for the last vertex. Multiply each coordinate of the vertex by the scale factor.
  4. List the image vertices.
  5. Draw the preimage and image on the coordinate plane.