Alex collects toy cars. He visits stores each weekend and buys more toy cars. His mother wants to keep track of Alex's purchases in order to predict when she will need to buy a larger container. She keeps track of his purchases for a few weekends then creates a line of best fit for Alex's purchasing habits after x weekends. Her line of best fit is modeled by the equation y = 10x + 22. Select all options that correctly interpret the linear model.