7. 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 = 4 2. Period = 2n 3. Phase shift = - - 4. Midline y = -3. Which graph below A-D is the graph of f(x)?|D 2pi 2pi -2pi -Pi 2pi A B -2pi -pi PI 2p -pi