3. Point F on the coordinate grid is reflected across a line to create point F'. Then, points D, F, and F'
are connected to create a triangle. Kari says point D must be on the perpendicular bisector of the
line FF', regardless of the line across which point F was reflected.
-75
+
D
F
Write the equation of a line across which F could be reflected to support Kari's claim.
Write the equation of a line across which F could be reflected to show that Kari's claim is
incorrect.