Education Technology

Algebra I: Transformations of Functions 2

by Texas Instruments


  • Students will recognize the effect of a vertical stretch, vertical compression, and reflection through the x-axis on the graph of a function.
  • Students will relate the transformation of a graph y = f(x) to the symbolic representation of the transformation. In other words, y = a ∙ f(x) may vertically stretch or compress and/or reflect through the x-axis.


  • vertical stretch
  • vertical compression

About the Lesson

This lesson involves investigating vertical stretches, vertical compressions, and reflections through the x-axis of a function. Students will learn to recognize how transformations of the form y = a*f(x) change the graph of y = f(x).