Express tan J as a fraction in simplest terms​

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

Which statement is true about the discontinuities of the function f(x) = x-5/ 3x^2-17x-28

Which function is shown in the graph below?