Samantha purchased a package of sugar cookies. The nutrition label states that each serving size of cookies contains 160 calories. Samantha creates the graph below showing the number of cookies eaten and the number of calories consumed.
Part A: Write an equation that represents the data graphed by Samantha.
Part B: What is the slope of the line? What does it mean in the context of the problem?
Part C: Provide a verbal description of the graph.