Graphing Secant y = -1/2 sec(x) - Free math lesson

The video tutorial covers the basics of trigonometric functions, focusing on sine, cosine, secant, and cosecant. It explains how to graph secant by first graphing its reciprocal, cosine. The tutorial discusses amplitude, reflection over the X-axis, and the calculation of periods and intervals. It guides viewers through drawing the cosine graph, identifying key points like intercepts and maximum/minimum values, and finally graphing the secant function using the cosine graph as a reference. The concept of vertical asymptotes in the secant graph is also explained.

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