How to do this graph by using linear regression in R?

How does utilizing linear regression benefit or help a business?

How should I draw this linear regression graph for this model? Thanks.

In multiple regression, you can have nominal and continuous predictors true or false

Residual analysis is important when studying the potential for linear regression because it allows for assumptions to be ignored for a time while graphs are created. True O False

A particular article proposed a quadratic regression model to describe the relationship between x = degree of delignification during the processing of wood pulp for paper and y = total chlorine content. Suppose that the actual model is the following. y=245+ 75x-4x² + e (a) Mean chlorine content for x = 6 is ---Select--- mean chlorine content for x = 8. (b) What is the change in mean chlorine content when the degree of delignification increases from 8 to 9? What is the change in mean chlorine content when the degree of delignification increases from 12 to 13?

Need help finishing the regression equation with the following:  Y=Residents' Preference B=Size of sector budget, sector budget, and individual trust as Independent Variables.  I'm using Jamovi software, but the need to create the equation with information above.  Thanks,