one pair
In order to draw a straight line, two unique ordered pairs are needed. This is because two unique points determine a line and an ordered pair represents a point.
ten
If you're referring to the Cartesian coordinate system, then it's 2 ordered pairs e.g. a straight line could be drawn between pairs (3, 5) and (2, 3) etc.
how many pairs of parallel line segments does a stop sigh have
A cube has six pairs of intersecting line segments. These six pairs will total 72 lines in a cube.
Two.
Four pairs, which intersect at the four vertices!
there are two pairs of parrell lines in a trapizoid, the top line and bottom line. I hope I answered your question!!=)=)
NoneOctagon hasn't got any pairs of parallel line
4
no lines
The coordinates of the corners of a polygon, the locus of curves, and many many other possibilities. In fact, ordered pairs that form a line are the exceptions.