Answer:
Option A is correct.
Explanations:
Given the following functions based on income generated
Income generated from first job M(x) = 400x + 394
Income generated from the second job A(x)= x^2 + 97x
Calculate the total income;
The total income of the function is the sum of both income functions above as shown:
This function D(x) gives the resulting function that represent the total income.