what is the equation of this graph?

(2 points) Sinuosoids on the plane have four basic features: amplitude, period, phase shift (sometimes called horizontal shift), and vertical shift (sometimes represented by the equation of the sinusoid's midline). Suppose f(x) is a function whose graph is a sinusoid with the following features 1. Amplitude = 1 2. Period = 3. Phase shift = 4. Midline y = 0