Geometry Name:______________________________
Lesson #4: Segment Bisector Period: ___
Coordinate Geometry: Midpoint, Distance and Slope
Definition:
Example:
Identify the segment bisector of
XY
and then find
XY
.
Coordinate Geometry Formulas:
Slope of
21
21
yy
AB xx
Midpoint of
:AB
1 2 1 2
,
22
x x y y
Distance between A and B:
22
2 1 2 1
AB x x y y
Examples:
Find the slope of
AB
Find the midpoint of
AB
Find
AB
The midpoint of
JK
is
2,1M
. One endpoint is
1,4J
.
Find the coordinates of endpoint K.
A segment bisector is an object that
intersects a segment at its
_____________________.
___
_
