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Use the graph below to answer the question that follows: cosine graph with points at 0, 3 and pi, negative 5 and 2 pi, 3 What are the amplitude, period, and midline of the function?

Amplitude: 4; period: 2π; midline: y = −1
Amplitude: 8; period: 2π; midline: y = 1
Amplitude: 8; period: π; midline: y = −1
Amplitude: 4; period: π; midline: y = 1

Use the graph below to answer the question that follows cosine graph with points at 0 3 and pi negative 5 and 2 pi 3 What are the amplitude period and midline o class=

Respuesta :

carlosego
For this case the amplitude is given by:
 A = (l-5l + 3) / 2
 A = 8/2
 A = 4
 The middle line is given by:
 y = -1
 The period of the function is given by:
 T = l x2 - x1 l
 T = l 0 - 2pi l
 T = l - 2pi l
 T = 2pi
 Answer:
 Amplitude: 4; period: 2π; midline: y = -1

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