Find the period and amplitude.
Y = 7 sin 40x

A)Period: π;Amplitude: -7
B)Period: π;Amplitude: $\frac { 1 } { 7 }$
C)Period: $\frac { \pi } { 20 }$ ;Amplitude: $- \frac { 1 } { 7 }$
D)Period: 2π;Amplitude: 1
E)Period: $\frac { \pi } { 20 }$ ;Amplitude: 7

Question

Find the period and amplitude. ​
Y = 7 sin 40x
​
A)Period: π;Amplitude: -7
B)Period: π;Amplitude: $\frac { 1 } { 7 }$
C)Period: $\frac { \pi } { 20 }$ ;Amplitude: $- \frac { 1 } { 7 }$
D)Period: 2π;Amplitude: 1
E)Period: $\frac { \pi } { 20 }$ ;Amplitude: 7

Quizplus · Accepted Answer

The Answer is E

Find the Period and Amplitude 17\frac { 1 } { 7 }71​

Find the Period and Amplitude $\frac { 1 } { 7 }$