Locus Problem (1)
In the applet below,
F is a point that is not on line d.
Point D is a point that lies ON the line that passes through A and B.
The pink line is the perpendicular bisector of the segment with endpoints F and D.
Drag point D along the line. What do you see? Describe in detail!
Feel free to alter the locations of A, B, and/or F.
Then clear the trace and drag point D along the line again.
Why does this occur?