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?
Answer
A
She could divide any y-value by its corresponding x-value.
B
She could divide any x-value by its corresponding y-value.
C
She could add any y-value to its corresponding x-value.
D
She could subtract any x-value from its corresponding y-value.