# Parabola equation from focus and directrix

Two plus -1 is one, so one, and so what is this going to be? You're gonna get y is equal to 1/6, x minus one, squared, plus 1/2. There you go. That is the parabola with a focus at

## Parabola focus & directrix review (article)

Let P (x, y) be any point on the parabola whose focus is (-4, 2) and the directrix x + y – 3 = 0. As we already know that the distance of a point P from focus = distance of a point P from directrix. So, √ (x + 4) 2 + (y – 2) 2 =. On Explain mathematic equation

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## Conic Sections Parabolas Summary & Analysis

Math High school geometry Conic sections Focus and directrix of a parabola. Intro to focus & directrix. Equation of a parabola from focus & directrix. Practice: Equation of a parabola from

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## How to Derive the Equation of a Parabola Given its Focus

How to Derive the Equation of a Parabola Given its Focus & Directrix Step 1: Use the directrix to determine the orientation of the parabola. If the equation of the directrix is of

## Finding the Equation of a Parabola Given Focus and Directrix

Therefore, the equation of the parabola with focus ( a , b ) and directrix y = c is ( x − a ) 2 + b 2 − c 2 = 2 ( b − c ) y Explain math

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