Graph the Secant Function with an Extension of It's Period and Vertical Shift

The video tutorial explains how to graph trigonometric equations, focusing on the reciprocal function of secant, which is cosine. It covers the steps to graph the cosine function, including understanding amplitude, period, phase shift, and vertical transformation. The tutorial then demonstrates how to apply these transformations to graph the cosine function and subsequently use it to graph the secant function, highlighting the creation of asymptotes and the behavior of the graph at maximum and minimum points.

What does a vertical transformation do to the graph of a cosine function?

Describe how to graph the cosine function before applying transformations.

What is the significance of asymptotes in the graph of the secant function?