On a number line, the directed line segment from q to s has endpoints q at -2 and s at 6. point r partitions the directed line segment from q to s in a 3: 2 ratio. rachel uses the section formula to find the location of point r on the number line.

in geometry, parallel lines are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel. by extension, a line and a plane, or two planes, in three-dimensional euclidean space that do not share a point are said to be parallel.