Baseball salaries The average salary of Major League Baseball players has been growing very rapidly since 1970.^79 A quadratic model and an exponential model were calculated to predict y= average salary from x 5 years since 1970. Here are the residual plots for each model. Based on the residual plots, which model is more appropriate? Explain. Years since 1970 Exponential Years since 1970 Which model is more appropriate? because