For this case we have:
A function of the form [tex]y = f (x)[/tex], where f (x) is given in a linear fashion as:
[tex]f (x) = mx + b[/tex]
Where m: Is the slope, in this case, $ 2 is charged for each gigabyte used.
b: Represents the activation rate
Rewriting we have:
[tex]f (x) = 2x + 18.09[/tex]
Where x represents the amount of gigabyte used
Answer:
See attached image
[tex]f (x) = 2x + 18.09[/tex]
