Answer:
y = sin(3x)
Explanation:
Amplitude = A = 1
Period = 2π/B = 2π/3
B = 3
Equation of a sine wave: y = Asin(B(x + C)) + D
There is no phase shift or vertical shift, so C and D are 0 (zero)
Therefore, the equation of the graph is:
y= Asin(Bx) = sin(3x)