Master Graphing Cosine with a change in the Amplitude

The video tutorial explains how to graph cosine functions with changes in amplitude. It begins with an introduction to cosine graphs and the concept of the initial period. The tutorial then delves into understanding amplitude, explaining how it affects the graph's maximum and minimum points. The instructor demonstrates graphing a cosine function with an amplitude of 2, showing how the graph stretches vertically. Finally, the tutorial covers graphing with an amplitude of -1/2, highlighting the reflection over the X-axis and vertical compression.

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