I’m using an activity from Jennifer Vadnais and making modifications. The vertical line is set to move across the graph when you click the button. I would like it to do 1 of 2 things below.
- Stop the vertical line from moving by clicking the button again.
- Stop at the point I direct it to stop (when it crosses 2 points at once).
Below is the link to the activity.
Thanks for any help given!