SOLUTION: Determine the amplitude, period, midline, and an equation involving the cosine for the graph shown in the figure below. https://www.webassign.net/waplots/a/c/238c3e7c0184dd9ef9614

Question 1203718: Determine the amplitude, period, midline, and an equation involving the cosine for the graph shown in the figure below.
https://www.webassign.net/waplots/a/c/238c3e7c0184dd9ef9614a641d8145.gif
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
standard form a cosine function:
±
where is amplitude, is period, is phase shift, is vertical shift

in the case of the basic cosine function, , the period is

in your case, from the graph we see that

then

amplitude:
period:
midline:

an equation:

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