Answer:
[tex]y = 5 + 0.003(2^{x})[/tex]
Step-by-step explanation:
If a base shipping charge of $ 5 is collected, it means that regardless of the amount of money spent, a base payment of $ 5 must be made for the shipment. Therefore the graph of the exponential function must move 5 units up on the positive y axis. Your new cutoff point with the positive y axis will be y = $ 5.003
Therefore, the new function that represents the shipping cost will be:
[tex]y = 5 + 0.003(2^{x})[/tex]
with [tex]x \leq 20[/tex]
