Skills Practice Workbook - Glencoe

4–5
Slope
Find the slope of each line.
NAME DATE PERIOD
Skills Practice
1. y
2. y
3.
(�1, 1)
O
1 �2 undefined
�� 4
4. y
5. y
6.
O
(3, 2)
(�2,�3) (2, �3)
x
0 �1 6
7. y
8. y
9.
(�1, 2)
O
(3, 0)
x
x
(�1, 3)
�� 1
� undefined �1
2 2 �
Given each set of points, determine if ��� AB and ��� CD are parallel, perpendicular, or neither.
10. A(1, 1), B(�2, 3), C(4, �1), D(6, 2) perpendicular
11. A(0, 5), B(5, 0), C(3, 2), D(4, 1) parallel
12. A(�2, 3), B(4, 5), C(0, 3), D(1, 0) perpendicular
13. A(0, 0), B(4, 5), C(0, 3), D(5, �4) neither
x
(1, �1)
14. A(�1, 1), B(3, �2), C(5, 0), D(3, �7) neither
15. A(2, �5), B(5, �2), C(�3, 1), D(�4, 0) parallel
16. A(2, �1), B(5, �3), C(�2, �2), D(3, 3) neither
17. A(3, 0), B(6, �3), C(4, 3), D(5, 4) perpendicular
O
(�2, 4) (0, 2)
O
O
© Glencoe/McGraw-Hill 23 Geometry: Concepts and Applications
(1, 3)
(1, �2)
x
x
O
y
(2,�2)
O
y
(3, 4)
y
(2, 4)
(�1, 1) (1, 2)
O
x
x
(2, �2)
x