Book sales online book sales continue to increase in popularity because it is convenient and customers can find books that are not available in their local bookstores. today, you will investigate several aspects of the book business using nonlinear functions. directions complete each of the following tasks, reading the directions carefully as you go. be sure to show all work where indicated, including inserting images of graphs. be sure that all graphs or screenshots include appropriate information such as titles, labeled axes, etc. if your word processing program has an equation editor, you can insert your equations here. otherwise, print this activity sheet and write your answers by hand. in addition to the answers you determine, you will be graded based on the work you show, or your solution process. so, be sure to show all your work and answer each question as you complete the task. type all your work into this document so you can submit it to your teacher for a grade. you will be given partial credit based on the work you show and the completeness and accuracy of your explanations. your teacher will give you further directions about how to submit your work. you may be asked to upload the document, e-mail it to your teacher, or print it and hand in a hard copy. now, let’s get started! part 1: graph piecewise functions from tables and equations. isabel sells new and used mystery novels online. her customers are primarily in the united states. she sends up to 10 pounds of books in one shipment. she uses the united states postal service’s media mail service because it is inexpensive for her customers. current media mail shipping prices for book shipments weighing 10 pounds or less appear below. 
 how much would it cost to ship a package weighing 3.2 pounds? explain how you arrived at your answer. (3 points) 3.2 pounds package has a shipping cost of $4.13. we can't use the cost assigned to 3 lbs because the package is over 3 lbs but it is not over 4 lbs so we use the cost of 4lbs. what type of graph is needed to represent the media mail shipping prices as a function of the weight of the books shipped? explain your thinking. (3 points) it is better to use a line graph where x values represent the weight in pounds and the y values represent the cost.

 graph the media mail shipping prices as a function of the weight of the books shipped. (10 points) f(x) = 2.69 + 0.48(x-1)