The distance formula between two points is often used to find the distance between two points and the coordinates of points in a function diagram, and it is one of the distance formulas. The distance formula between two points describes the relationship between points and the distance between points.
Let two points a, b and coordinates be
、
The distance between a and b is:
Extended data:
The distance formula between two points on a straight line:
Set a straight line
The equation is
, point
For any two points on a straight line, then
This formula is the so-called conic chord length formula. Ruoji
Is the inclination angle of the straight line AB, then
At the same time, if the straight line formula and one of the points are known and the distance is given, the coordinates of the other point can be obtained in reverse.
Baidu Encyclopedia-Distance formula between two points
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