Find the period and amplitude of the function $y = 3 \cos 2 x$ .
A)period: $2 \pi$ ; amplitude: 6
B)period: $2 \pi$ ; amplitude: 3
C)period: $\pi$ ; amplitude: 3
D)period: $\pi$ ; amplitude: 6
E)period: $\frac { \pi } { 2 }$ ; amplitude: 3

Question

Find the period and amplitude of the function $y = 3 \cos 2 x$ . 
A)period: $2 \pi$ ; amplitude: 6 
B)period: $2 \pi$ ; amplitude: 3 
C)period: $\pi$ ; amplitude: 3 
D)period: $\pi$ ; amplitude: 6 
E)period: $\frac { \pi } { 2 }$ ; amplitude: 3

Quizplus · Accepted Answer

The Answer of Find the period and amplitude of the function $y = 3 \cos 2 x$ . 
A)period: $2 \pi$ ; amplitude: 6 
B)period: $2 \pi$ ; amplitude: 3 
C)period: $\pi$ ; amplitude: 3 
D)period: $\pi$ ; amplitude: 6 
E)period: $\frac { \pi } { 2 }$ ; amplitude: 3

Find the Period and Amplitude of the Function y=3cos⁡2xy = 3 \cos 2 xy=3cos2x

Find the Period and Amplitude of the Function $y = 3 \cos 2 x$