Given the graph above, write the equation as a cosine function
a. y = .25 cos ø
b. y = .75 cos 2ø
c. y = -.75 cos 2ø
d. y = -.50 cos 3ø
e. y = cos 4ø

Option B

Step-by-step explanation:

The general cosine function has the following form  

Where A is the amplitude: half the vertical distance between the highest peak and the lowest peak of the wave.  

is the period: time it takes the wave to complete a cycle.

k is the vertical displacement.

The maximum value of y is is 0.75 and the minimum is -0.75. Then the amplitude A is:  

Then

The cycle is repeated every units  

So the period is

Thus:

The function is:

when y is maximum therefore As shown in the graph

ok so the answer to your question is simple as long as you look at the different dimensions that contain the exemplary letters that combined in the right order give you words that eventually within the 5th dimension will conform and give you the correct answer to your question. hope i , stop looking at this easily, look at it with a spectral view.

step-by-step explanation:

told you