Activity where students match the graph of a relationship with a card that describes its domain, range, and whether it is a function. Each "Deck" contains 24 graph cards and 24 description cards. Each deck also has a minimum of 2 levels of difficulty. The easier version has all critical coordinates labeled, while the more difficult version only shows the relationship. I have created and included "note" cards that give hints as well as 2 suggested activities for stronger students. Cards are color coded based on the level of difficulty.