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1. What is the frequency of the sinusoidal graph?

 

2.Which equation represents the function on the graph?

 Jan 14, 2019
 #1
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1.   The period is   pi/ 2

 

Then....the frequency  =  1 / period  =      1 / [pi/ 2 ]   =   2 / pi

 

 

2. This is the cosine graph which has 4 periods in 2pi

 

So.....the equation is

 

f(x)   =  cos (4x)

 

 

cool cool cool

 Jan 14, 2019

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