Which ordered pairs lie on the graph of the exponential function f(x)=−3(x−1)+2 ?

(1,1)

(0,0)

(4,−25)

(−1,2)

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