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anonymous
 one year ago
Write the equation of a parabola with a vertex at (3, 7) and a directrix x = 8
anonymous
 one year ago
Write the equation of a parabola with a vertex at (3, 7) and a directrix x = 8

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dan815
 one year ago
Best ResponseYou've already chosen the best response.0do you know what is special about the directrix

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0it's parallel to whichever is squared

dan815
 one year ago
Best ResponseYou've already chosen the best response.0i have to go for a bit, she might help you

dan815
 one year ago
Best ResponseYou've already chosen the best response.0this will get you started, the main this is that the length from the focus to the parabola and the perpendicular length from the directrix to the parabola is the same

dan815
 one year ago
Best ResponseYou've already chosen the best response.0not drawn to scale but that relationship is always true

dan815
 one year ago
Best ResponseYou've already chosen the best response.0from the focus to the parabola is the same distance as the perpendicular distance from the directrix to a point on the parabola

dan815
 one year ago
Best ResponseYou've already chosen the best response.0see if you can think of idea to solve for your parabola equation y=ax^2+bx+c
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