You can use GeoGebra
to construct a parallel through a point. If instead, you want to construct a parallel without a specified point, follow the instructions here.
GeoGebra
Instruction 1
Algebra View
and Graphics View
under View
in Menu
. Parallel line
, which you can find by first clicking the fourth tool (Line
), and then the second tool in the list. GeoGebra
will draw the parallel for you.