Page 1: Introduction to Dilations and Transformations
This page introduces fundamental concepts of dilations and transformations through practical examples. Students learn to work with coordinate points and apply dilation rules.
Definition: A dilation is a transformation that produces a similar figure by multiplying all distances from a center point by a scale factor.
Example: Triangle DEF with vertices D−4,1, E2,3, and F2,1 is dilated by a factor of 3 using the origin, resulting in D'−12,3, E'6,9, and F'6,3.
Highlight: The rule for dilation can be written as x,y → kx,ky where k is the scale factor.
Vocabulary: Pre-image refers to the original figure, while image refers to the transformed figure.