6. what is the equation of the 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. Which graph below A-D is the graph of f(x)? |A pi/5 PW/18 P1/10 PiAd 2pi 2pi -1 4 A B -2pi pi 2pi C D