Right click the "Dilation" slider and select "Animate on". Watch the intials dilate by the factor determined by the slider. You will make your own initials dilate in GeoGebra, but you will have one initial go in one direction, while your other initial in a different direction.
Why do the letters flip when the factor is a negative value? Why do the letters turn into a point at the origin? When do the letters reverse their direction? Why?