Unit 2.3: Trigonometric Graphs

Trigonometric equations and general solutions


Use of a calculator to be taught after the investigative approach:

The graphs can be easily drawn by using CASIO fx-82 ES Plus

Example: Sketch the graph of y = sin(4x) and for x e[-90º;90º]

Step 5 : Plot the points from the table, which will look as follows:

Strategies for graphical interpretations: Typical interpretation questions