Determine the Amplitude or Period as Requested $y = - 4 \cos ( 6 \pi x + 3 \pi )$

question 160

Multiple Choice

Determine the amplitude or period as requested.
Graph Variations of y = cos x
-Period of $y = - 4 \cos ( 6 \pi x + 3 \pi )$

• A) \(\frac { 1 } { 3 }\)
• B) \(\frac { \pi } { 3 }\)
• C) 3
• D) \(6 \pi\)

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