Analyze the residual plot below and identify whioh, ii any, of the oonditions for an adequate linear model is not met. Residual; 15 2'5 Explanatory

Would someone please review the attached examples and my answers. I believe i did the questions correctly but I would like a professional to review them and let me know if/where i made mistakes. If anything is wrong, please let me know where I went wrong so I could work the problem again. Thanks!