Linear Functions. Free is nice. Free and useful is awesome!
A concise two page summary of some essential concepts and procedures related to linear functions. The Cheat Sheet covers each of the following in abbreviated fashion:
•How to Find the Equation for a Line
•Relationships between Two Lines in the Coordinate Plane
•Horizontal vs. Vertical Lines
If you want to lead your kids towards mastery of linear functions, I recommend this awesome bundle of missions on linear functions:
The Amazing Linear Functions Bundle from Courage To Core!
The above link takes you to over 100 pages of great, classroom animating missions. The magic of linear functions explored with genies, road trips, base jumpers, gym memberships and more. Students create functions to model and visualize real-world scenarios, and create equations to answer questions about those scenarios. Lines aren't just lines, they are powerful models of the world. Fun!