Slope Relationship of Two Parallel Lines

Relationship: If lines L₁ and L₂ are parallel, then their slopes are equal, i.e., k₁ = k₂. Conditions: Both lines are not perpendicular to the x - axis (i.e.,…

Syllabus path: Geometry and Algebra › Plane Analytic Geometry › Equations and Properties of Lines

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CSCA Mathematics Formula Reference

Formula and explanation

Relationship: If lines L₁ and L₂ are parallel, then their slopes are equal, i.e., k₁ = k₂. Conditions: Both lines are not perpendicular to the x - axis (i.e., their slopes exist). Explanation: This is a common condition for determining if two lines are parallel. For lines perpendicular to the x - axis (slope undefined), they are parallel if and only if their x - coordinate constants are equal.

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Equations and Properties of Lines

Equations and Properties of Lines The straight line is the cornerstone of analytic geometry. For the CSCA exam, you must not only master the five forms of linear equations but also flexibly handle positional relationships (parallel, perpendicular) and distance problems. 1. Inclin…

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