Does anyone know a geometrical (i.e. not algebraic) reason that the sum of two parabolas is still a parabola?
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Replying to @shapeoperator
@mandy3284@squishythinking I would approach that by drawing inflection points. Show that when x^2 + x^2 [draw] no change # inflect points1 reply 0 retweets 0 likes -
Replying to @starsandrobots
@mandy3284@squishythinking you can even show that on an x-by-x basis, points are only linearly offset (draw vertical lines btw curves)1 reply 0 retweets 0 likes -
Replying to @starsandrobots
@mandy3284@squishythinking Twitter has to be about the most ironic medium for trying to depict this. Lmk if this !make sense, I try to draw1 reply 0 retweets 0 likes -
Replying to @starsandrobots
@starsandrobots@mandy3284 Sorry, I'm not quite following. Agreed re: Twitter, but if I asked somewhere else, you wouldn't have seen it!1 reply 0 retweets 1 like
@squishythinking @mandy3284 tru! Ok will do something & post after (3AM in my timezone rn)
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