HP Prime Graphing NW280AAABA manual Line

Line

Segment	Tap where you want one endpoint to be and press E.
	Tap where you want the other endpoint to be and press
	E. A segment is drawn between the two end points.
	Keyboard shortcut: r
Ray	Tap where you want the endpoint to be and press E.
	Tap a point that you want the ray to pass through and press
	E. A ray is drawn from the first point and through the
	second point.
Line	Tap at a point you want the line to pass through and press
	E. Tap at another point you want the line to pass
	through and press E. A line is drawn through the two
	points.
	Keyboard shortcut: j
Vector	Tap where you want one endpoint to be and press E.
	Tap where you want the other endpoint to be and press
	E. A vector is drawn between the two end points.
Angle bisector	Tap the point that is the vertex of the angle to be bisected (A)
	and press E. Tap another point (B) and press E.
	Tap a third point (C) and press E. A line is drawn
	through A bisecting the angle formed by AB and AC.

Perpendicular bisector

Tap one point and press E. Tap another point and press E. These two points define a segment. A line is drawn perpendicular to the segment through its midpoint. It does not matter if the segment is actually defined in the Symbolic view or not. Alternately, tap to select a segment and press E.

If you are drawing a perpendicular bisector to a segment, choose the segment first and then select Perp. Bisector from the Line menu. The bisector is drawn immediately without you having to select any points. Just press Eto save the bisector.

156 Geometry