Answer:
B
Step-by-step explanation:
the standard form of a sine wave is
y = asinbx + c
where a is the amplitude , period = [tex]\frac{2\pi }{b}[/tex] and c is the vertical shift
a = [tex]\frac{max-min}{2}[/tex] = [tex]\frac{1-(-1)}{2}[/tex] = 1
period = [tex]\frac{2\pi }{3}[/tex]
b = [tex]\frac{2\pi }{\frac{2\pi }{3} }[/tex] = 3 , c = 0
hence y = sin 3x is the equation of graph
