Determine the amplitude or period as requested.Period of y = -2 cos x
A. 
B. 2?
C. 2
D. ?
Answer: B
Mathematics
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A. -8? B. -64? C. 16 D. 8?
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y = 3cos (4t ) ?1
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Match the equation to the graph.y2 = -4x
A. 
B. 
C. 
D. 
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