14-25u To construct a parallel1. Draw a line segment, plot a point, and select the line and point.2. Perform the following operation: 4(Construct) – 6:Parallel.• This will draw an infinite line that is parallel to the selected line segment and passesthrough the selected point. Marks ( ) appear on both the line segment and the infinite lineto indicate they are parallel.→NoteYou can perform a parallel construct operation while any of the following combination objectsis selected.• A single line segment and a single point, a single line and a single point, a single ray and asingle point, a single vector and a single point• One side of a polygon and a single pointu To construct a tangent1. Draw a circle.2. Perform the following operation: 4(Construct) – 7:Tangent.• This will cause the message “Select Curve” to appear.3. Move the pointer close to the location on the circle where you want to construct the tangent.• Move the pointer towards the circle until marks appear on it.4. Press w.• This will draw a line that is tangent to the circle at the location you selected with thepointer.→NoteYou can perform the tangent construct operation while a circle, semi circle, arc, or functiongraph is selected.
