Question

What is the equation of the graph below?

Answer 1

Answer:

B

Step-by-step explanation:

the standard form of a sine wave is

y = asinbx + c

where a is the amplitude , period = $\frac{2\pi }{b}$ and c is the vertical shift

a = $\frac{max-min}{2}$ = $\frac{1-(-1)}{2}$ = 1

period = $\frac{2\pi }{3}$

b = $\frac{2\pi }{\frac{2\pi }{3} }$ = 3 , c = 0

hence y = sin 3x is the equation of graph