Answer
$y = sin~(2x+\pi)$
We can see the graph below.
Work Step by Step
$y = sin~(2x+\pi)$
When $x = 0$, then $y = sin~\pi = 0$
When $x = \frac{\pi}{4}$, then $y = sin~\frac{3\pi}{2} = -1$
When $x = \frac{\pi}{2}$, then $y = sin~2\pi= 0$
When $x = \frac{3\pi}{4}$, then $y = sin~\frac{5\pi}{2} = 1$
When $x = \pi$, then $y = sin~3\pi = 0$
We can see the graph below.