This is a set of 20 task cards with graphs, tables, ordered pairs, and mapping diagrams. For each card, students are asked to determine if the relation is a function or not. The answer includes a brief description why when relations are NOT functions. Students are also asked to find the domain and range of the relations. Domains and ranges for discrete relations are given in set notation on the answer key. There are 3 graphs that are continuous. Those domain and ranges are provided in both inter