Question

Jim uses the function f(x) = 0.7x + 23 to determine the amount he charges for each used

drone he sells, where x is the original value of the drone. The function g(x) = 1.08x is used to
determine the amount a customer pays for a drone at Jim’s store including 8% sales tax.
Write a function to determine the total amount a customer pays for a used drone at Jim’s
store including 8% sales tax.

Answer 1

Given that Jim uses the function f(x) = 0.7x + 23 to determine the amount he charges for each used drone he sells, where x is the original value of the drone and that the function g(x) = 1.08x is used to determine the amount a customer pays for a drone at Jim’s store including 8% sales tax.

The function to determine the total amount a customer pays for a used drone at Jim’s store including 8% sales tax is given by

f(x) + g(x) = 0.7 + 23 + 1.08x = 1.78x + 23.