Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Question
I only need answer to number 20 and 27. Thank you.
![In Exercises 15-24, find the slope of the given line if it is
defined.
--x-4
15. y =
y=x+1
17. y =
19. 3x + 10
21. 3y + 1 = 0
23. 4x + 3y = 7
27. y = -x + 2
29. y + x = -4
31. 7x - 2y = 7
33. 3x = 8
35. 6y=9
37. 2x = 3y
16. y
y=+4
In Exercises 25-38, graph the given equation.
[HINT: See Quick Examples 3 and 4.]
25. y = 2x - 1
26. y=x-3
28. y = -x + 3
30. y - x = -2
32. 2x-3y = 1
34. 2x=-7
39. (0,0) and (1, 2)
41. (-1,-2) and (0,0)
=-²-1
18. y =
20. 8x - 2y = 1
22. 2x + 3 = 0
24. 2y + 3 = 0
36. 3y = 4
38. 3x = -2y
In Exercises 39-58, calculate the exact slope (rather than a
decimal approximation) of the straight line through the given
pair of points, if defined. Try to do as many as you can without
writing anything down except the answer. [HINT: See Quick
Example 5.]
40. (0,0) and (-1,2)
42. (2.1) and (0:0)
(a)
(f)
(2)√
(b)
60. In the following figu
ments:
(1)
(g)
In Exercises 61-80, find a
straight line with the giver
61. Through (1, 3) with sl
62. Through (2, 1) with s
63. Through (1,-) with
64. Through (0,-) with.
65. Through (20, -3.5) am
per unit of x
66. Through (3.5, -10) ar](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb39c7dee-7c3f-4481-823f-1eba39ee6dcc%2F74f58c55-dfd7-48a6-bf38-5564711e7773%2Fohwwx0j_processed.jpeg&w=3840&q=75)
Transcribed Image Text:In Exercises 15-24, find the slope of the given line if it is
defined.
--x-4
15. y =
y=x+1
17. y =
19. 3x + 10
21. 3y + 1 = 0
23. 4x + 3y = 7
27. y = -x + 2
29. y + x = -4
31. 7x - 2y = 7
33. 3x = 8
35. 6y=9
37. 2x = 3y
16. y
y=+4
In Exercises 25-38, graph the given equation.
[HINT: See Quick Examples 3 and 4.]
25. y = 2x - 1
26. y=x-3
28. y = -x + 3
30. y - x = -2
32. 2x-3y = 1
34. 2x=-7
39. (0,0) and (1, 2)
41. (-1,-2) and (0,0)
=-²-1
18. y =
20. 8x - 2y = 1
22. 2x + 3 = 0
24. 2y + 3 = 0
36. 3y = 4
38. 3x = -2y
In Exercises 39-58, calculate the exact slope (rather than a
decimal approximation) of the straight line through the given
pair of points, if defined. Try to do as many as you can without
writing anything down except the answer. [HINT: See Quick
Example 5.]
40. (0,0) and (-1,2)
42. (2.1) and (0:0)
(a)
(f)
(2)√
(b)
60. In the following figu
ments:
(1)
(g)
In Exercises 61-80, find a
straight line with the giver
61. Through (1, 3) with sl
62. Through (2, 1) with s
63. Through (1,-) with
64. Through (0,-) with.
65. Through (20, -3.5) am
per unit of x
66. Through (3.5, -10) ar
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