Midpoint Formula and Segment Length
This page focuses on finding the midpoint of a line segment and calculating segment length in the coordinate plane.
The midpoint formula is introduced:
M = (x1+x2)/2,(y1+y2)/2
For segment length, the distance formula is given:
AB = √(x2−x1)2+(y2−y1)2
Several examples demonstrate the application of these formulas.
The page then transitions to equations of lines, presenting two main methods:
- Using two points on the line point−pointform
- Using a point and the slope point−slopeform
Vocabulary: The punto medio (midpoint) is the point that divides a line segment into two equal parts.
Example: For a segment with endpoints A(2,1) and B(-3,5), the midpoint M is calculated as (-1/2, 3).
Definition: The length of a line segment is the distance between its endpoints, calculated using the distance formula derived from the Pythagorean theorem.
Highlight: The midpoint and length formulas are fundamental tools in coordinate geometry, used in many advanced problems and proofs.