Find the Period P and Amplitude a and Graph at Least

question 48

Multiple Choice

Find the period P and amplitude A and graph at least two periods of the equation. $y = 4 \cos \frac { 4 } { 3 } x$

• A) P = 480°, A = 4
• B) P = 90.0°, A = 1.33
• C) P = 270°, A = 4
• D) P = 270°, A = 4
• E) P = 480°, A = 4

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