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The graph of a cosine function shows a reflection over the x-axis, an amplitude of 3, a period of 2, a phase shift of 0.25 to the right, and a vertical shift of 5 units up.

Which is the equation of the midline? 

 Mar 21, 2020
 #1
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The USUAL midline for cos and sin functions is  0    this one is shifted up 5 units

y= 5

 Mar 21, 2020

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