Answer
amplitude $3$, period $ 2\pi$, no vertical translation, and phase shift $\frac{\pi}{2}$ to the left.
Work Step by Step
Given $y=3\ sin(x+\frac{\pi}{2})$, we can find the following: amplitude $3$, period $p=\frac{2\pi}{1}=2\pi$, no vertical translation, and phase shift $\frac{\pi}{2}$ to the left.
