#### Topic: Projection of a point on x axis

Hi! I have a question, how can I project a point betweent two crossing functions on x axis?

Thanks for reply!

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Graph Forums → Support → Projection of a point on x axis

Hi! I have a question, how can I project a point betweent two crossing functions on x axis?

Thanks for reply!

I am unsure what exactly it is you want.

If you want to find the intersection between two functions then do his:

1. Select one of the functions in the list.

2. Select *Calc|Evaluate* in the menu.

3. Select *Intersection* as *Snap to*.

4. Click somewhere in the graphing area near the intersection. Graph will then find the coordinates of the nearest intersection.

If what you want is to place a point on the x-axis to mark the place, then you can use a point series for that.

Thank you for your reply! That's almost what I wanted to achieve It look exactly like this:

So I would like to get a nice dotted line from the point of crossing between 2 functions to the x axis.

You can for example use a point series with two points to create the dotted line. You don't have to show the markers. Alternatively you can use a parametric function to create it as a vertical line where you can limit the range.

Graph Forums → Support → Projection of a point on x axis

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