Answer:
Option (2).
Step-by-step explanation:
A satellite T.V. company charges one time installation fees along with monthly service charge.
Total cost is modeled by the function y = 40 + 90x
Here y = Total cost charged by the company
A one time installation charges = $40
Service charge for a month = $90
and number of months for which service was used = x months
Therefore, Option (2) explains the function well.
