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Algebra Revisited
Linear Systems
Solving Linear Systems, from 1 to 2 to N Variables
Systems in ≥2 Variables via Substitution, Elimination, Etc.
One or Two Linear Equations in Two Variables
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Subtopics
Single Linear Function/Equation/Inequality in 2 Variables
2 Linear Equations in 2 Variables: Intersection of Two Lines
Change of Basis/Coordinates/Perspective
(Re-)Parameterizing Line (Segments)
Algebra vs. Geometry of Projections
(Solving For) Line Through Two Points
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