Two points determine a straight line, you can make a parallel line along the wall on the wall, and then determine two points on this line according to the actual situation.

A straight line consists of countless points. A straight line is a part of a surface and then constitutes a body. There is no end point, extending to both ends indefinitely, and the length cannot be measured. A straight line is an axisymmetric figure.

It has countless axes of symmetry, one of which is itself, and all lines perpendicular to it (there are countless axes of symmetry). There is only one straight line between two non-overlapping points on the plane, that is, two non-overlapping points determine a straight line. On the sphere, countless similar straight lines can be made after two points.

Extended data:

Generally speaking, the distance from a point to a straight line is the shortest distance from a point to a straight line, which is the vertical distance.

In two-dimensional rectangular coordinates, the shortest distance between the straight line Ax+By+C=0 and the point (P, Q) is

straight-line distance

Generally speaking, the distance between two straight lines refers to the shortest distance.

In the case of two dimensions, the distance between two intersecting lines must be zero.

If there are two parallel straight lines?

and

There is a distance.

Given the parallel vector formula?

And then what?

Then there is