At about the 6:35 mark, the instructor miscopies a 4 as a 2. His answer for f(8) is 0, but should actually be -2.
In this lesson, the focus is on understanding the stretching that occurs in a transformation, and how to graph the function after the transformation. The two types of stretches discussed are vertical and horizontal. The lesson explains how to determine the type of stretch and how it affects the graph. The lesson ends with an example of plotting the graph after a transformation.
Describing a transformation with vertical and horizontal stretch then graphing
I show how to solve math problems online during live instruction in class. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exactly how to solve math problems step by step. The problems are done in real time and in front of a regular classroom. These videos are intended to help you learn how to solve math problems, review how to solve a math problems, study for a test, or finish your homework. I post all of my videos on YouTube, but if you are looking for other ways to interact with me and my videos you can follow me on the following pages through My Blog, Twitter, or Facebook.