# How do you find the value of sin ((7(pi)) / 2) using the graph?

$\sin \left(\frac{7 \pi}{2}\right) = - 1$
Let $y = \sin x$
Check the value of $y$ at $x = \frac{7 \pi}{2} = 10.9956$ and $y = - 1$. From the graph, when $x = \frac{7 \pi}{2} = 10.9956$ and $y = - 1$.