Parallel And Perpendicular Lines Worksheet Page 21
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5047.
CRITICAL THINKING
The line containing the point (5
2t,
3
t) can be
described by the equations x
5
2t and y
3
t. Write the slope-intercept
form of the equation of this line.
WRITING IN MATH
Answer the question that was posed at the beginning of
48.
the lesson.
How is slope used in transportation?
Include the following in your answer:
• an explanation of why it is important to display the grade of a road, and
• an example of slope used in transportation other than roads.
Standardized
49. Find the slope of a line perpendicular to the line containing ( 5, 1) and
Test Practice
( 3,
2).
2
3
2
3
A
B
C
D
3
2
3
2
ALGEBRA
50.
The winning sailboat completed a 24-mile race at an average speed
of 9 miles per hour. The second-place boat finished with an average speed of
8 miles per hour. How many minutes longer than the winner did the second-
place boat take to finish the race?
A
20 min
B
33 min
C
60 min
D
120 min
Maintain Your Skills
Maintain Your Skills
Mixed Review
In the figure, QR TS, QT RS, and m 1
131.
1
Q
Find the measure of each angle.
(Lesson 3-2)
2
5
51.
6
52.
7
3
T
R
6
53.
4
54.
2
4
7
55.
5
56.
8
S
8
State the transversal that forms each pair of angles. Then
identify the special name for each angle pair.
p
(Lesson 3-1)
1
2
3
4
57.
1 and
14
58.
2 and
10
5
6
7
8
q
59.
3 and
6
60.
14 and
15
9 10
11
12
13 14
15
16
61.
7 and
12
62.
9 and
11
m
Make a conjecture based on the given information. Draw
a figure to illustrate your conjecture.
(Lesson 2-1)
63. Points H, I, and J are each located on different sides of a triangle.
64. Collinear points X, Y, and Z; Z is between X and Y.
65. R(3,
4), S( 2,
4), and T(0,
4)
A
D
Classify each angle as right, acute, or obtuse.
(Lesson 1-4)
B
66.
ABD
67.
DBF
E
68.
CBE
69.
ABF
F
C
Getting Ready for
PREREQUISITE SKILL
Solve each equation for y.
the Next Lesson
(To review solving equations, see pages 737 and 738.)
y
70. 2x
7
71. 2x
4y
5
72. 5x
2y
4
0
144 Chapter 3 Parallel and Perpendicular Lines
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