This activity is also part of one or more other Books. Modifications will be visible in all these Books. Do you want to modify the original activity or create your own copy for this Book instead?
This activity was created by '{$1}'. Do you want to modify the original activity or create your own copy instead?
This activity was created by '{$1}' and you lack the permission to edit it. Do you want to create your own copy instead and add it to the book?
For each of the worksheets in this collection, when you move point A, point B moves in response. How is point B related to point A? What is the rule that determines the movement of point B? Can you describe this relationship algebraically and geometrically?