Hello There!!~ (^人^) I need help please... Sasha noticed that the graph of the sales of yearbooks represented a proportional relationship. How could she have calculated the constant of proportionality by looking at the graph? She could divide any y-value by its corresponding x-value. She could divide any x-value by its corresponding y-value. She could add any y-value to its corresponding x-value. She could subtract any x-value from its corresponding y-value. And, Make a Explanation please And, i may give out brainlist who ever have's a correctly answer. And, 46 points...