In this lesson, students cover the following topics:• Direct, Inverse, Joint, and Combined Variation problems• Identify the constant given points, tables, or a graph• Identify the type of variation given points, a table, a graph, or a real world scenario• Write an equation based on the variation relationship• Understand the similarities and differences between variationsStudents preview the lesson by watching a short video on YouTube and then come to class with some prior knowledge. This lesson