The equation of the graph is the form y= a sin x. What is the amplitude of the sine curve? What is the value of a?

Question

A)amplitude =3; a=-3
B)amplitude =2; a=2
C)amplitude =-2; a=-2
D)amplitude =3; a=3

Answer 1

B) amplitude = 2; a = 2

In the equation y = a sin x, the amplitude is equal to the absolute value of a. Since a = 2, the amplitude is 2.