Ploting x=constant

[John P]

(05-15-2022 07:52 PM)matalog Wrote:  I was trying to do this the other day too, basically plot a vertical line in Function graphing app.

I'm not sure you can, as it doesn't seem to allow one graph to have 2 points at the same x value, you are plotting F(x) which is basically Y=, is what I concluded.

I hope I am wrong, and there is a way to do it.

Hello,
I did not use HP Prime for some time. I was using Pocket CAS on my iPhone. In Pocket Ca you just enter for example x=1, and it is done.