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 On line (d) place point A. Slightly draw segment [SA].

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Douine – Sixième – DNL maths – Parabola

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How to draw a parabola

 In the middle of your page, draw line (d) and point S outside line (d).

 Point S will be 1 or 2 cm distant from line (d).

 On line (d) place point A. Slightly draw segment [SA].

 Draw the line perpendicular to [SA] through point A.

 Do it again and again with various points A placed regularly on line (d).

 All together the perpendiculars form a parabola.

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