Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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Question
Can you solve #39-44 please 3.6
Transcribed Image Text:Extra Practice
3.4 Tell whether the lines through the given points are parallel, perpendicular,
or neither. Justify your answer.
24. Line 1: (7, 4), (10, 5)
Line 2: (2, 3), (8, 5)
25. Line 1: (-3, 1), (-2, 5)
Line 2: (-1, -3), (5, –2)
26. Line 1: (-6, 0), (8, 7)
Line 2: (1, 4), (2, 2)
3.4 Tell which line through the given points is steeper.
27. Line 1: (0, -6), (-4, –9)
28. Line 1: (-1, -5), (–1, 3)
29. Line 1: (1, 1), (2, 6)
Line 2: (1, 1), (3, 10)
Line 2: (-2, 5), (1, 9)
Line 2: (-3, 4), (-5, 4)
3.5 Write an equation of the line that passes through point Pand has the given
slope m or is parallel to the line with the given equation.
1
32. P(9, 4), m =
2
30. Р(4, 7), т %3D2
31. Р(-3, 0), т %—
3
3
33. Р(1, -2), у%3D -2х- 6
34. Р(6, 3), у
1
+ 12
35. Р(-7, 3), у х+3
36. Р(0, 3), у %3 4х -2
2
37. Р(-9,4), у 3Dх+1
38. Р(8, -3), у 3 х — 5
3.6 Find MLADB.
39.
40.
41.
A
B'
B.
D
21°
A
D
43. D
42.
A
44.
(4x - 1)° A
(3x + 32)°
2x
(x+ 12)
D
26x
(2x + 1)
B
3.6 45. Copy and complete the proof.
A
GIVEN BẢ 1 BC,
BD bisects ZABC.
PROVE > MLABD = 45°
B
STATEMENTS
REASONS
1. BẢ L BỞ
1. ?
2. Definition of perpendicular lines
3. ?
2.
3. MLABC = 90°
4.
4. Given
5. MZABD = M2DBC
5.
6. Angle Addition Postulate
7.
6. MLABC = ? + _ ? _
7. MZABD + mZ DBC = 90°
8. MLABD + = 90°
9. 2(MLABD) = 90°
10. MZABD = 45°
8. Substitution Property of Equality
9.
10. ?
EP7
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