Regina Henschel writes…
Teachers of mathematics often need a parabola in their instructions or exercises. Creating a parabola by using a chart is cumbersome. Therefore I have generated some parabolas as custom shape for anyone to use. You can get them in this LibreOffice Writer document.
A simple parabola
A parabola with focus
And a parabola with tangent, where you can drag the point of contact
The parabola-shapes are contained in a document. You can copy and paste a shape from there to your document or you can drag the shapes into your Gallery. The document contains in addition some explanations how the shapes were generated. You can download the document from the wiki.
I hope you find the shapes useful!