intial scafolding

main.tex

@@ -0,0 +1,15 @@
+\documentclass{article}
+
+\usepackage{graphicx}
+\usepackage{subfiles}
+
+\begin{document}
+
+\subfile{chapters/intro}
+\newpage
+\subfile{chapters/OpenStax_Precalc_4_7.tex}
+
+\bibliographystyle{plain}
+\bibliography{main}
+
+\end{document}