Homework for College Algebra
Before you start, please read the following handouts:
(1) Directions for Homework: if you fail to follow those directions, your homework will be too difficult for me to grade and I will have to return it with no grade.
(2) About Homework: important information about the significance of homework for this course.
(3) How to do the required homework. suggestions about how to tackle the HW
(4) How to earn extra credit: information on the extracredit HW indicated below.
Required homework will be due as noted in the schedule, and may be collected and graded. Feel free to obtain as much help as needed from me (in or out of class), the tutors, or your classmates to arrive at the book answers for this homework. Otherwise, ask when you arrive in class. When collected, I will select a few problems from each HW section to grade, at 5 points per problem.
Late homework: up to three late (for any reason) homeworks will be accepted at no penalty; lates in excess of three will receive no credit.
Extra credit homework for a section will be submitted according to the schedule, with no lates accepted (for any reason). Write “Extra credit” and the section number at the top of the page.
Extra credit homework is to be your work, and yours alone. Evidence of collaboration or other kinds of cheating may result in dismissal from class with an F. See the “Statement on Scholastic Dishonesty” on the First Day Handout.
Following are the
exercises to be
completed for each section we will cover. They are found as
numbered “Exercises”
at the end of each book section.
Section 
Required HW 
Extracredit HW 
1.1 
9, 19, 23, 25, 39, 43, 63, 65, 79, 81, 85, 95 
66, 80 
1.2 
21, 25, 43, 49, 55, 61, 67, 77, 79, 81, 85, 87, 91 
62, 82, 88 
All above exercises to be completed by hand. 77, 79 test your understanding of a viewing rectangle. For 81, 85, and 87, the answers are shown in a viewing rectangle. You do not need a graphing calculator to do them, or to understand the book answers. 

1.3.1 
23, 25, 27, 33 
26, 28, 36 
1.3.2 
75, 87*, 89*, 91*, 93*, 95* 
88*, 90*, 92*, 94* 
*explain why it is or is not a function, without reference to a graph (see H/O #1). 

All graphs shown on HW and tests must be labeled and scaled (otherwise, they will be ungradeable, and will receive no credit) 

1.3.3 
19 odd, 1319 odd, 43, 45, 47, 53, 57, 63*, 67*, 69*, 77**, 79**, 81** 
50, 82** 
* omit verbal **explain why or why not 

R.2 
1, 5, 7, 15, 17, 19, 23, 31, 33 
26, 34 
1.4 
1, 9, 17, 21, 2935 odd, 37*, 43*, 53*, 63, 65, 69, 73, 75, 77, 83 *graph by hand 
74, 84 
Word problems: For problems in the problem list marked with a “W”, follow the presentation rules for them described in the notes (2.3). Otherwise, your work will be ungradeable and credit will be withheld, even if you ”get the right answer”.

Required HW 
Extracredit HW 

2.1 
1(explain your answer), 5, 9, 11, 25, 27, 41, 49, 53 
16, 44, 54 

2.2.1 
5, 7, 9, 11, 15, 17, 19, 33, 47, 49, 51, 65, 71 
10, 74 

2.2.2 
39, 41, 43, 81, 87, 89, 101, 103, 107 
82, 88, 90 

2.3 
5, 9, 31, 35, 41, 79, 88W(ans=189), 93, 101W, 103W, 105W, 107W 
102W, 108W 

*”W” denotes word problems with special presentation rules; see H/O #2 for directions 

2.4 
113 odd, 17, 23, 27, 33, 49, 51, 85, 87, 89c, 91, 103 
92, 104


2.5 
1, 3, 7, 9, 15, 51, 59, 71*, 73*, 77*, 83, 85 
4, 80*, 84 

*use the method shown by Example 10, p. 150, by me in class, and by the notes 

3.1 
111 odd, 17, 19, 25, 39, 47, 51, 57, 59, 61, 63, 81, 83, 85, 86, 87, 88, 93 
82, 94 
3.2 
33c, 35c, 45, 49, 53, 61, 63, 101, 107W, 113W 
56, 112W 
3.3 
1, 3, 5, 2733 odd, 51, 61, 63 
34, 62 
Solve all inequalities using the graphical method shown by Example 1, p. 207, by me in class, and by the notes Sketch must be shown. 

3.4 
19 odd, 11, 13ab, 15ab, 29, 31, (4153 odd)**, 77, 8389 odd, 97, 99 
12ab, 44**, 100* 
** by hand. State the transformations used, and the intermediate formulas obtained. See H/O #3 for directions. *also state the equation of the mountain after 20 sec. 
4.1 
111 odd, 15, 23, 39, 43, 57, (77, 79, 81)*, 91, 93, 115, 123 
82*, 94, 120 

* “symbolically”, as shown on p. 248, by me in class, and in H/O #4. 


4.2 
1, 3, 5, 13*, 15*, 25, 4147 odd, 53, 55, 67, 75, 77, 83 
16*, 68 

*for part (a), explain your choice 


4.3.1 
7, 9*, 13, 14**, 15, 37, 39, 41, 43, 47, 49, 63 
10, 64 

*use synthetic division ** answer: x^{3}  2x^{2} + 4x – 8 and 1 

4.3.2 
69, 73, 75, 77, 79, 103, 107 
70, 78 

4.4 
17 odd, 11, 13, 27, 29, 47, 51, 63, 65, 71, 75, 77, 93, 101* 
54,78, 104* 

solve equations symbolically *read about “Factoring by Grouping” p. R29 

4.5.1 
1, 5, 15, 21, 23, 31, 33*, 35*, 57cd**, 61cd**, 101, 113 
58cd**, 60cd** 

*explain your choice ** do not use graphing technology; use the method shown by me and by H/O #5. 

4.5.2 
71**, 79a, 105, 117, 119, 123, 129, 133, 137 
114, 134 

4.6.1 
3, 9, 13a, 15a, 21, 23 
16a, 20 

4.6.2 
29a, 37, 43, 47, 49 
38, 44, 48 

4.7 
(1, 5, 9)*, 23, 27, 3137 odd, 39**, 43**, 45, 51, 53, 65, 67, 77, 83, 89ac 
40**, 50, 70, 88 

*show work (no calculator) **state transformations used 
5.1.1 
1, 3, 5, 7, 9, 13, 17, 21, 27, 37, 53, 57, 61 
58, 100 
5.1.2 
55, 65, 73, 85, 99, 105, 117, 129 
70, 104 
5.2 
1, 3, 5, 7, 13, 15, 19*, 23*, 29*, 39, 41, 45, 71, 81, 93, 95, 101, 105, 107, 121, 123, 129, 133 
24*, 82, 102 
Compute inverses of functions given by formula as shown in Example 4, p. 386, by me in class, and in the notes. * if not onetoone, prove it as shown on p. 384, Example 2, by me in class, and in the notes (without reference to a graph). 

5.3.1 
121 odd, 25, 27, 29, 4147 odd, 53, 59, 61(name the transformations used), 69, 71, 73 
42, 56 
5.3.2 
87, 91a, 93, 95a, 99 
92ab, 100bcd 
5.4 
1, 5, 7, 1723 odd, 3137 odd, 45, 49, 53, 55, 57, 61, 69, 73, 75, 79, 83, 99107 odd, 117125 odd 
122ab, 126 
5.5 
1, 5, 11, 13, 23, 25, 31, 43, 45, 47, 53*, 55*, 65, 67, 83, 89 
56*, 80, 88 

^{ }* let x = 1 to 5 

5.6 
1, 3, 5, 9, 21, 27, 33, 37, 45, 49, 53, 69a, 7379 odd, 85(see Newton’s Law, p. 448), 93, 95 
30, 80, 84 
6.1 
1, 21, 25, 37, 49c, 51, 67a, 69a, 79, 83, 85abW, 99, 103 
88W, 104 
6.2 
1, 3, 5, 9, 17, 21, 23, 29bW, 31bW, 71W, 75W, 79W 
16, 80W 
all systems are to be solved symbolically, by elimination 

6.4.1 
1, 5, 9, 11*, 17, 25, 27, 33, 37 
32, 36 
*if answer is “no”, explain 

6.4.2 
35, 57, 59, 73W, 75W 
34, 60, 74W 
6.5 
1, 13, 23, 37, 39, 41, 51, 55, 57, 59 
56, 60 
6.6 
1, 5, 9, 21, 29, 53, 71 
30, 54, 58, 70W 