You will need to cut graphs out and assemble once printed. From there, there's almost endless possibilities... Laminate for dry erase? Have students use play dough to graph lines? Put it up on a magnetic white board and use magnets to plot points? Admittedly, this will take a bit of work on your part. But using large graphs in your classroom can instantly turn math worksheets into a more tactile and visual learning experience.
In creating this product, I also came up with a game that would readily engage students in graphing anything you throw at them! It's pretty simple... you just need to give groups their own graph and tell them a coordinate. Whoever plots a point on this coordinate gets points or a prize! You may even mark the coordinate with a small star sticker and let students know when they're "playing for stars". You could also give students a mystery coordinate!
As for graphing inequalities, students may show dotted lines in many different ways. They can twist two different colored pipe-cleaners together, make line marks in play dough, or you can give students yarn that is dotted with permanent marker. Students will also be able to show solutions for different graphs using different colored markers if the graph is laminated.