This activity gives students the opportunity to practice writing equations involving dependent and independent variables. There are 12 graphs. Each graph shows the linear relationship between an independent and dependent variable. There are 3 points (ordered pairs) indicated on each line. Students must determine the equation that represents the relationship. Each relationship is based on a real-world situation. A 4-page student worksheet is included in this product. These problems are similar to question #5 on the PARCC PBA (calculator part) practice test.