Giving out free points and first one to get them gets brainlest

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.

How can constraints be used to model a real-world situation?