These 20, unique task cards ask students to find the feasible region of the three, given inequalities. Answer Key Included. These cards can be used for formative assessment. Teach the lesson on a specific topic, practice, and then give these to students to solve to check for understanding. I make multiple copies and students must complete a task card correctly before they can move on. Additionally, you can use these cards as daily (individual, partner, or whole group) warm-ups or exit tickets