Use the graph below to answer the question that follows: cosine graph with points at 0, negative 1 and pi over 3, 0 and pi, 3 and 5 pi over 3, 0 and 2 pi, negative 1 What are the amplitude, period, and midline of the function?Amplitude: 4; period: π; midline: y = 2 Amplitude: 2; period: 2π; midline: y = 1 Amplitude: 4; period: 2π; midline: y = 1 Amplitude: 2; period: π; midline: y = 2
Question
Answer:
For this case the amplitude is given by:A = (l-1l + 3) / 2
A = 4/2
A = 2
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: 2; period: 2π; midline: y = 1
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10 months ago
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