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Write an equation for a sinusoidal function from key features
Worksheet
Grade Level
Trigonometry
TRIG.60 Write an equation for a sinusoidal function from key features
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A cosine model has range [-6, 10], period 6pi, and a maximum at x = pi/2. Which equation matches?
A
y = 8 cos(3(x - pi/2)) + 2
B
y = 8 cos((1/3)(x - pi/2)) - 6
C
y = 8 cos((1/3)(x - pi/2)) + 2
D
y = 8 cos((1/3)x) + 2
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