Precalculus: Enhanced with Graphing Utilities (9th Edition, Michael Sullivan) – Complete Solutions Manual

SOLUTIONS MANUAL

PRECALCULUS, ENHANCED WITH GRAPHING UTILITIES
9TH EDITION

CHAPTER NO. 01: GRAPHS
Section 1.1 (f) x-axis

1. 0
2.




3. x-coordinate; y-coordinate; quadrants
4. False; points that lie in Quadrant IV will have a
positive x-coordinate and a negative y-coordinate.
9. The points will be on a vertical line that is two
The point  1, 4  lies in Quadrant II.
units to the right of the y-axis.
5. d
6. c
7. (a) Quadrant II
(b) x-axis
(c) Quadrant III
(d) Quadrant I
(e) y-axis
(f) Quadrant IV




10. The points will be on a horizontal line that is
three units above the x-axis.




8. (a) Quadrant I
(b) Quadrant III
(c) Quadrant II
(d) Quadrant I
(e) y-axis
11.  1, 4 ; Quadrant II
12. (3, 4); Quadrant I

13. (3, 1); Quadrant I

,14.  6, 4 ; Quadrant III 21. X min  6
X max  6
15. X min  11 X scl  2
X max  5 Y min  4
X scl  1 Y max  4
Y min  3 Y scl  2
Y max  6
Y scl  1 22. X min  3
X max  3
16. X min  3 X scl  1
X max  7 Y min  2
X scl  1 Y max  2
Y min  4 Y scl  1
Y max  9
Y scl  1 23. X min  6
X max  6
17. X min  30 X scl  2
X max  50 Y min  1
X scl  10 Y max  3
Y min  90
Y scl  1
Y max  50
Y scl  10 24. X min  9
X max  9
18. X min  90
X scl  3
X max  30
Y min  12
X scl  10
Y max  4
Y min  50
Y scl  4
Y max  70
Y scl  10 25. X min  3
X max  9
19. X min  10
X scl  1
X max  110
Y min  2
X scl  10
Y max  10
Y min  10
Y scl  2
Y max  160
Y scl  10 26. X min  22
X max  10
20. X min  20
X scl  2
X max  110
Y min  4
X scl  10
Y max  8
Y min  10
Y scl  1
Y max  60
Y scl  10

,27. y  x 4  x 39. (–4,0), (–1,0), (4, 0), (0, –3)

0  04  0 1  14  1 0  (1) 4  1 40. (–2, 0), (2, 0), (0, 3)
00 1 0 0  1  1
41. y  x  2
(0, 0) is on the graph of the equation.

28. y  x3  2 x
0  03  2 0 1  13  2 1 1  13  2 1
00 1  1 1  1
(0, 0) and (1, –1) are on the graph of the
equation.

29. y 2  x 2  9
32  02  9 02  32  9 02  (3)2  9
99 0  18 0  18
(0, 3) is on the graph of the equation.
42. y  x  6
30. y3  x  1
23  1  1 13  0  1 0 3  1  1
82 11 00
(0, 1) and (–1, 0) are on the graph of the
equation.

31. x 2  y 2  4
2 2
02  22  4 ( 2)2  22  4 2  2 4
44 84 44
(0, 2) and  
2, 2 are on the graph of the
equation.

32. x2  4 y 2  4 43. y  2 x  8

02  4 12  4 22  4  02  4 22  4    4
1 2
2
44 44 54
(0, 1) and (2, 0) are on the graph of the equation.

33. (–1, 0), (1, 0)

34. (0, 1)

    
35.   , 0  ,  , 0  , (0, 1)
 2  2 

36. (–2, 0), (2, 0), (0, –3)

37. 1, 0  ,  0, 2  ,  0, 2 
38. (2, 0), (0, 2), (–2, 0), (0, –2)

, 44. y  3x  9 48. y   x2  1




49. 2 x  3 y  6
2
45. y  x  1




50. 5 x  2 y  10
46. y  x 2  9




47. y   x 2  4
51. 9 x2  4 y  36