How can I put images in a LaTeX document

Question

Suppose I have a LaTeX document, and I wanted to add a jpg file to the document. How would I do that?

For example, if I had a jpg file called graph.jpg, how would I add it to the below LaTeX document, under the formula for W_net?

\documentclass{article}
\begin{document}
\Huge
Formulae in \LaTeX\
\vspace{1cm}
\LARGE
$W_{net}=\int\vec{F}\cdot,d\vec{s}$\
\end{document}