Mathematics, 28.05.2021 01:00 shimmerandshine1

What is the equation of the graph below? On a coordinate plane, a curve crosses the y-axis at y = 1. It has a maximum of 1 and a minimum of negative 1. It goes through 1 cycle at 5 pi.
y = cosine (StartFraction x Over 0.4 EndFraction)
y = cos(5x)
y = cos(0.4x)
y = cosine (StartFraction x Over 5 EndFraction)

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What is the equation of the graph below? On a coordinate plane, a curve crosses the y-axis at y = 1...