Answer
The relationship that is found between the number of months and the number of subscribers is modeled as $ S = 8m +48 $ with s being the number of subscribers and m being the number of months.
This is clear when looking at the chart provided. The value for 0 months is 48 subscribers; 1 month is 56 subscribers; 2 months is 64 subscribers; and so on. Using the formula
$ S = 8m +48 $
$ 0 * 8 + 48 = 48 $
$ 1*8+48=56 $
$ 2*8+48=64 $
Work Step by Step
Explanation above.