In multiple regression, unstandardized regression coefficients can be used to: d. determine the slope of the line between two variables.
What is multiple regression?
The change in the dependent variable for a one-unit change in the predictor variable, while holding the other variables constant, is represented by the unstandardized regression coefficients.
Like the slope of a line in simple linear regression, they provide information about the strength and direction of the link between a certain predictor variable and the result variable.
Modelling the link between a dependent variable and several independent variables is the aim of multiple regression.
Therefore the correct option is D.