Analyze each scenario and graph: voice instructor notices that only one out of every ten of her students can sing soprano: store owner notices that in his parking lot; two out of every six vehicies are trucks: 60 70 Total Number of Vchicles Total Number of Students Identify the proportional relationship represented by each line as it relates to the scenario Explain your reasoning_ b. Write an equation that has constant of proportionality between those represented on the graph