Vertex Form Equation of a Parabola (Vertex at (h, k), Axis Parallel to y - axis)

Equation: (x - h)² = 2p(y - k) or (x - h)² = - 2p(y - k). Conditions: Vertex at (h, k), axis of symmetry parallel to the y - axis (opens upward or downward). E…

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

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CSCA Mathematics Formula Reference

Formula and explanation

Equation: (x - h)² = 2p(y - k) or (x - h)² = - 2p(y - k). Conditions: Vertex at (h, k), axis of symmetry parallel to the y - axis (opens upward or downward). Explanation: The sign of parameter p determines the opening direction. Focus and directrix coordinates are translated accordingly.

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Equations and Properties of Parabolas

Equations and Properties of Parabolas The parabola is the only conic section with an "eccentricity e = 1 ". The key to this topic is applying the geometric definition. In the CSCA exam, mastering the four standard equations and using the "Definition Method" are crucial. 1. Defini…

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