But in this case we can't use simple linear regression because our design input includes multiple features like model, production year, brand, transmission, mileage, ports and type, etc. . To train the value of our data, therefore, our focus will be on using multiple linear regression for this project. We are using multiple linear regression defined as a model that “the relationship between two or more variables by fitting a linear equation to the observed data. Each value of the independent variable x is associated with a value of the dependent variable y”. So this definition refers directly to our above methods for handling data inputs, therefore it indicates that our model is suitable for our application The most important objectives of multiple regression analysis are i) Describe ii) Predict iii)