This is a set of 2 different types of task cards!
The first set contains 8 cards that ask the question: Is the linear equation proportional or nonproportional? The answer key on the back of each card gives a description as to why the answer is the way it is.
The second set contains 6 different equations for students to complete the table, graph, and then answer the question: Is it proportional?
I would print these on cardstock, and laminate the graphing cards so students can use dry erase markers. If laminating or cardstock is not available, printing on regular paper will also be effective for practicing these skills!