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Graph of a Quadratic
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https://www.geogebra.org/m/y83ktgmm
My app has one bug. When I move the vertex of the quadratic y = a(xp)^2+q up and down it changes the value of 'a'. I would like to be able to move my graph around without changing the value of 'a' while still retaining the possibility of changing the value of 'a'.
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I think that your a depends of Vertex,so they changes together.I made same changes on your file,but I forgot to make copy of your file.I will delite it after few days,don`t worry. https://www.geogebra.org/m/qvppfntb
your function environment
M = (2, 4)
a = (6, 0)
k=(y(M) + y(a)) / (x(M)²  2x(M) x(a) + x(a)²)
f(x)= k (x x(M))² + y(M)
perhaps do you mean anything like that?
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