Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).

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.