Answer
$ŷ =-2.827x+88.73$
Work Step by Step
In MINITAB, enter the number of absences per week in C1 and in C2 enter the final grade values.
Select Stats -> Regression -> Regression -> Fit Regression Model
Enter C2 in "Responses" and C1 in "Continuous Predictors"
The least-squares regression line ($ŷ =b_1x+b_0$) will be shown in "Regression Equation", where C2 is $ŷ $ (final grade) and C1 is $x$ (number of absences).
