Find the Period and Amplitude $$y = \frac { 4 } { 5 } \sin 2 \pi x$$

question 14

Multiple Choice

Find the period and amplitude.​ $$y = \frac { 4 } { 5 } \sin 2 \pi x$$ ​

• A)Period: 1;Amplitude: \(\frac { 4 } { 5 }\)
• B)Period: π;Amplitude: \(\frac { 5 } { 4 }\)
• C)Period: 2π;Amplitude: 1
• D)Period: \(\frac { \pi } { 2 }\) ;Amplitude: \(\frac { 1 } { 5 }\)
• E)Period: π;Amplitude: 5

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