How do you graph #y = 1/2 cos 2x #?

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Answer 1 · 2018-03-27T16:23:42

see below...

first we need to make the table of values.

#x|y#

#0|1/2#

#pi/4|0#

#pi/2|-1/2#

#(3pi)/2|0#

#pi|1/2#

Now we can plot the graph.

![https://www.mathway.com/images/http://placeholder.gif](https://useruploads.socratic.org/wGWmrbSjOVNYhlZIVsCA_gr.PNG)