babykynn10 babykynn10

05-06-2020
Mathematics

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write the equation for a paraloba with a focus at (7,2) and a directrix at y=-2

Respuesta :

corylencher corylencher

05-06-2020

Answer:

y = (x-7)^2 / 8

Step-by-step explanation:

The focus to vertex distance is (2-(-2))/2 = 2 and the parabola open's upwards.

Thus: a = 1/(4·2) = 8, vertex at (7,0).

This means that:

y = (x-7)2/8

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