Thread: How to graph y = cos x?

I already understand how to do part a. However I don't know where to start on part b.

Also are these the values for the graph?
0.8
0.2415
cos (0.8) = 0.696706709
-cos(2.9) = 0.970958165
*My calculator is in radians

Please start me with graphing this problem. Thank you so much!

Dear florx,

First draw the graph of y=cos t. Then try to draw these segments. Do you know the cosine function?? In any case I have attached it below.