30.1 From Vectors to Coordinates: Where Analytic Geometry Begins
Point 2 of 4
30.1.2 The Distance Between Two Points
Core idea
Stretch a rubber band between two points, walk across then up to form a right triangle, and its length is √((x₂−x₁)²+(y₂−y₁)²).
Module goal. Carry the vector thinking forward from the last stage, build the big idea of describing shapes with coordinates and equations, and revisit the tools of the plane.
eastmath.com · 30.1 From Vectors to Coordinates: Where Analytic Geometry Begins · 30.1.2 The Distance Between Two Points