title{homework}
author{me}
date{}
begin{document}
  maketitle
  setmainfont{Microsoft Sans Serif}
  centering
  include{Plot1}
  crazy
  include{Plot1}
end{document}

resizebox{columnwidth}{!}{
begin{tikzpicture}[x=1pt,y=1pt]
...
end{tikzpicture}
}