O O O O O 2000 4000 O O O O O O O O O O O resid(Im(teacher_pay$PAY ~ teacher_pay$SPEND)) O O O O O 80 0 O O O O O O O go oo O -4000 -2000 O OO 3000 4000 5000 6000 7000 8000 teacher_pay$SPEND **From the residual plot in part 4, does the linear model a good model to predict the teachers' salary based on the spending on public school?**