click below
click below
Normal Size Small Size show me how
ALG I LAP 9
Systems of Equations
Question | Answer |
---|---|
3 methods to solve a system of equations | graphing, substitution, addition/subtraction (or elimination) |
system of equations | two or more linear equations |
solution set for coinciding lines (same slope, same y-intercepts) | infinitely many solutions |
solution set for parallel lines (same slope, different y-intercepts) | no solution |
solution set for intersecting lines (different slopes) | ordered pair for point of intersection |
open half-plane | region of a plane which does not include the boundary line |
closed half-plane | region of a plane which does include the boundary line |
boundary line | the inequality graphed as a solid or dashed line |
dashed boundary line | inequality is either < or > |