Download Line Segments in the Coordinate Grid

Name
Chapter 22, Lesson 4
Reteach
Date
Line Segments in the
Coordinate Grid
CA Standards
MG 2.2,
MG 2.3
To find the length of a line segment, you can count the units,
or you can find the difference between the coordinates.
0
_
1
_
2
1
2
3
4
_
5
6
x
_
(1, 1)
(6, 1)
_
3
_
4
_
5
_
6
y
• Count the units: 1, 2, 3, 4, 5, 6 = 5 units
• Subtract the x-coordinates: 6 - 1 = 5 units
Graph and connect each pair of points. Then count the units to find the length
of the line segment.
y
1.
6
(-5, 4) (2, 4)
5
1
2.
(1, 3) (1, -6)
4
(5, )
(2, )
3 2
2
3.
(-5, 0) (6, 0)
3
1
_ _ _ _ _ _
6 5 4 3 2 1_0
1
_
2
_
3
_
4
_
5
_
6
,
1
2
,
)
3
4
5
6
x
Subtract to find the length of the line segment that connects each pair of points.
4.
(-8, -3) (-1, -3)
5.
(0, 10) (0, 0)
Writing Math Where on the coordinate grid is a number that
is labeled with two positive numbers, for example (6, 7)?
Reteach
Use with text pages 494–496.
Copyright © Houghton Mifflin Company. All rights reserved.
73744_C22L4_RET.indd 19
6/29/07 12:11:20 PM