It is given to us that the monthly revenue of a digital magazine from each user is represented by f(x) = 3x + 9.
It is also given to us that the monthly cost to provide the digital magazine to each user per month is represented by g(x) = [tex] x^{2} [/tex]
Now, we know that Profit is always given by:
Profit = Revenue - Cost
Therefore, from the above formula and the given data we can evaluate the profit for each user as:
Profit=[tex] (3x+9)-x^2 [/tex]
