)(3 points) use the values of f at the point x = a and the nearby point x = a + h to find a good approximation. (you will need to set up a linear system involving c, m, a, h, f(a), f(a + h), where c and m are the variables. you should also be able to solve this linear system exactly for the vector c m .)

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