10. Slope in our equation represents the rise which is the price of the automobile over the run which is the age of the car. Our slope is which means that the older the car gets the less money it is worth. We do not believe this is a fixed value for automobile prices because different cars might decrease in price at different rates or they may be considered a classic or later be defined as a classic and the price could rise as age increases.
11.Y-intercept in our equation represents the most expensive the car will ever be. This also represents the assumed price of what a brand new car would cost.