This foldable fits perfectly in an interactive notebook.
Copy pages 2-3 front to back on the short edge. Fold the paper in half, open it up, then fold the left side in half again. Have students cut on the dashed lines. The flap above the equal and plus sign should be removed. When closed, it should have Slope-Intercept form on the front. Open it one time, and y=,x+b is seen. Then you can open each flap showing what each piece means.
You can use the examples I give (I make my kids write the equations as practice copying for the EOC) or come up with your own. I cut the page with 4 graphs in half so they have 4 more examples that fit in their notebook.