PreCalculus: 01/23/2007

Quickstart
p.330 #1 - 13 odd
Identify amplitude and period of sine and cosine curves from graph or equation.

(4.5) Graphs of Sine and Cosine Curves [continued]
Objective: Students will know how to sketch graphs of sine and cosine functions.

II. Amplitude and Period of Sine and Cosine Curves
Practice p.330 #30

III. Translations of Sine and Cosine Curves
Horizontal Translation - graphing calculator
What happens when we change c?
Graph on a graphing calculator
y = sin x
y = sin (x - π/4)
y = sin (x - π/2)
y = sin (x - π)
y = sin (x - 3π/2)
y = sin (x - 2π)
What happens to the graph?
Use the Student Success Organizer to take notes

Homework
p.331 #39, 41, 43