Transformations of sinusoidal functions

Double Period today.

First period involverd looking at the affect horizontal transfortamtions had on the graphs of y=sonx and y=cosx; including the period, sinusoidal axis, and amplitude.

Second period involved correcting work from the first as well as reflections and putting all of the transformations together.

Homework: for each of the following,
a) Find the Mapping Rule
b) Table of Values
c) Graph the function
d) Find the period, sinusoidal axis, and amplitude

1) y=cosx with a reflection in the x-axis, horixontal stretch of 1/3, horizontal translation of -180
2) y=cosx with a vertical stretch of 3 and a horizontal translation of 90
3) y=cosx with a reflection in the x-axis, vertical stretch of 1/2, horizontal stretch of 2, vetrtical translation of 1, horizontal translation of -90