How can I draw part of a conic, such as a parabola? I need to show the parabola only from its vertex to an intersecting line segment.
It's fine to use a y=... notation to define a conic c, so you can use the conics related tools on it, e.g. V=Vertex[c], but you need to use a functional notation to define a part of that conic.
Let's say your conic is y=3x^2+2x-1
and you want to restrict it to a certain interval, e.g. all its points between the x-coordinate of the previously determined vertex V and the x-coordinate of a previously defined point C.
In the input bar, type
Now hide the "full" conic by clicking on its visibility marble in Algebra view.
Please note that in Algebra view the two curves you just drew are respectively classified as a conic and a function.
This is major difference in GeoGebra: conics and functions have their reserved tools, so, depending on your goals, you will choose the one or the other notation.
Ah, great! Thanks! :D
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