When you are given two lines, there are many ways to determine if and where they intersect. You can graph them, solve by substitution, solve by elimination, and use matrices to solve.
Two-Variable Linear Systems
Solving systems by elimination is the focus of this video.
Two-Variable Linear Systems Section 7.2 notes
Multi-Variable Linear Systems
Multivariable Linear Systems Section 7.3 notes
Systems of Inequalities
Systems of Inequalities Section 7-5 notes
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