Episode 4 — Trigonometric Functions

Properties of Cosine Function

Learners will be able to:

• Identify the period of the graph of y = cosine x. • Describe the turning points of the graph of y = cosine x and their repetition every 360 degrees. • Explain the amplitude of the graph of y = cosine x. • Sketch the graph of y = cosine x, including its period and amplitude. • Use a calculator to verify information about the graph of y = cosine x.