Hi,
I don't think you can get the exact value with any GC if it is
in terms of square roots or ln or etc type of weird non-rational
values
For TI-84, I believe you can press [2nd] [Calc], and number 5,
finding intersection. The calc button is somewhere on the small
blue text at the top of the calculator, around the window key I
think.
I don't own any GC, nor do I have one with me right now, so
pardon me if I'm wrong.
Thanks Eagle, we'll try that.
Oh sorry! - doesn't have to be "exact" like root 2 or what.
Decimals are fine. The problem was she was positioning the cursor
by hand over the intersection point as best she could, and then
noticing the co-ordinates of the cursor !
I told her the GC must have some automatic way of declaring the
intersection points but we couldn't figure it out. So I'll try
[2nd] [Calc] and number 5.
Anyone who knows for sure how to find intersection points with
TI-84, please share, thanks !