Answers: Transforming the Sine and Cosine Function

1) y= cos (1/2x)

2)  y=-cos (2x)

3) y=2sin (1/2(x-2))+1

a. amplitude= 2

b. period=4pi

c. 2

d. 1

4) Amplitude is 1/2, the graph is moved 1 up and right by pi/3. The period of this graph is pi.

5) The length of the radius