Determine the period and amplitude of the following function.
$$y = 4 \cos \left( \frac { 3 x } { 4 } + \frac { \pi } { 4 } \right)$$

A) period: $2 \pi$, amplitude : 2
B) period: $10 \pi$, amplitude : 2
C) period: $5 \pi$, amplitude : 4
D) period: $\frac { 8 \pi } { 3 } ;$ amplitude : 4
E) period: $3 \pi$, amplitude : 4

Question

Determine the period and amplitude of the following function.
$$y = 4 \cos \left( \frac { 3 x } { 4 } + \frac { \pi } { 4 } \right)$$

A) period: $2 \pi$, amplitude : 2 
B) period: $10 \pi$, amplitude : 2 
C) period: $5 \pi$, amplitude : 4 
D) period: $\frac { 8 \pi } { 3 } ;$ amplitude : 4 
E) period: $3 \pi$, amplitude : 4

Quizplus · Accepted Answer

The Answer of Determine the period and amplitude of the following function.
$$y = 4 \cos \left( \frac { 3 x } { 4 } + \frac { \pi } { 4 } \right)$$

A) period: $2 \pi$, amplitude : 2 
B) period: $10 \pi$, amplitude : 2 
C) period: $5 \pi$, amplitude : 4 
D) period: $\frac { 8 \pi } { 3 } ;$ amplitude : 4 
E) period: $3 \pi$, amplitude : 4

Determine the Period and Amplitude of the Following Function y=4cos⁡(3x4+π4)y = 4 \cos \left( \frac { 3 x } { 4 } + \frac { \pi } { 4 } \right)y=4cos(43x​+4π​)

Determine the Period and Amplitude of the Following Function $y = 4 \cos \left( \frac { 3 x } { 4 } + \frac { \pi } { 4 } \right)$