4 QUESTIONS FOR 50 POINTS!!!!!! PLEASE HELP!!
1) What are 3 different methods for solving systems of equations and when would you use each one?
2) How do you graph the solution set to a system of linear inequalities in two variables?
3) How do you determine whether a system of linear equations has no solution, one solution, or infinitely many solutions?
4)What are equivalent systems and how are the algebraic properties used in creating equivalent systems?