Moveable Points and Conditionals

Questions
1

Hello Desmos CL Forum,

I want to use a moveable point on the condition that {W=0}, but as soon as I add the condition, the point becomes fixed. I want the line of best fit on screen 2 to disappear when the final button is clicked and replaced with the ray with open point at x=1.

https://teacher.desmos.com/activitybuilder/custom/5f3b9d50fb7c433abcb22ecb

Thanks,
Richard Punches

2

Are you referring to line 36?
Points can only be movable when the expression consists only of a point, or is an assignment of a point to a variable. Using sliders for your coordinates, putting the condition inside the parentheses, and changing the style to default should unlock drag.

3

Thanks Jay. You statement about putting conditions inside the (x,y) parentheses helped. I did have to do a little magic to determine which point was actually graphed at the note I wanted excluded. Anyway, thanks. It works exactly as I hoped.

Richard