Suppose you are an avid reader and are looking to save money on the cost of books Instead of paying about $20 for each book, you decide to look into purchasing a Kindle for $120 You can purchase e-books for about $5 each

1. Find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books

2. Find the slope-intercept equation for the cost of the Kindle with cost of e-books using x to represent the number of books