1. The problem statement, all variables and given/known data A car depreciates over time. x(years) y ($) 1 14000 2 9100 3 6200 4 4000 5 3000 i) determine the linear model (1 mark) ii) determine the quadratic model (1 mark) iii) determine the exponential model (1mark) b) using all three models determine the amount the car is worth after 10 years c) which model decribes this best? 2. Relevant equations 3. The attempt at a solution If I only knew where to begin. This is a correspondance course, last question of the course, and the text book discussed this for 3 pages and only gave us the exponential equation in an example. I have asked several teachers, university students and nobody can figure this out. I can handle b and c if I could only figure out a). Any help would be greatly appreciated.