This graph represents a proportional relationship between the number of months, x, data is used on a cell phone and the total cost of data usage, y.



The equation that represents the graph above is y =
x.

The cell phone company decides to raise the data prices to charge $90 every 2 months. The new equation that would represent this relationship is y =
x.

This graph represents a proportional relationship between the number of months x data is used on a cell phone and the total cost of data usage y The equation th class=