Algebra functions

Question

Pretend you own a company that sells items over the Internet. You decide that shipping costs will be based on the total weight of a customer's purchase. Write a piecewise function for your shipping charges. Include from three to five weight intervals.

Post your store name, briefly describe the types of items you sell (for example, pet toys), and give a description of your shipping-charge function (clearly state the rules, and the domain intervals to which they apply).