Quick Review The period is the distance until the y-values repeat their cycle.
A constant times the angle x changes the periods.
To sketch this, mark off the amplitude on the y-axis and mark off the period, , on the x-axis. Divide the period into quarters. Example 1 y = 3 sin 5x Example 2 y = 4 cos /2 or y = 4 cos
Example 3 y = - sin 4x |