Math 114
College Algebra
Assigned Homework Problems (Tentative)
Spring 2014
Homework Assignments
Homework is worth 2 points per section.
Homework is taken from the Exercise Sets.
HW #1:
HW #2:
HW #3:
HW #4:
HW #5:
HW #6:
§2.5 – §2.7
§3.1 – §3.6; §C–3
§4.1 – §4.5
§5.1 – §5.3
§6.1 – §6.7
§7.1; §7.3 – §7.6
(6 points)
(14 points)
(10 points)
(6 points)
(14 points)
(10 points)
Answers to Odd-Numbered HW Problems are found at the
back of your book in the Student Answers Appendix on
pages SA–1 through SA–44. These pages have tan edges.
§2.5
§2.6
§2.7
Chapter 2: Modeling with Linear and Quadratic Functions
HW #1: §2.5 – §2.7 (6 points)
Problems to be done Analytically (By hand – No Graphing Calculator)
TI 84+ Problems/Skills
7 – 43 odds, 51 –79, odds , 99 – 103 odds
45 – 49 odds;
(note: for 51 – 59 and 65 – 79 you do not need to confirm your answer on the TI
(Also, know how to check
84+ nor round on the calculator for the HW)
your work for 51 – 59 and
65 – 79 if you needed to)
9 – 13 odds, 19 – 55 odds
No problems from text.
(note: for these problems you do not need to confirm your answer on the TI 84+
(Know how to check your
nor round on the calculator for the HW)
work for these problems if
you needed to)
25 – 63 odds
No problems from text.
(Know how to solve these
inequalities on a graphing
calculator)
Chapter 3 HW is on next page.   
§3.1
§3.2
§3.3
§3.4
§C–3
§3.5
§3.6
§4.1
§4.2
§4.3
§4.4
§4.5
Chapter 3: Modeling with Linear and Quadratic Functions
HW #2: §3.1 – §3.6; §C–3 (14 points)
Problems to be done Analytically (By hand – No Graphing Calculator)
TI 84+ Problems/Skills
11 – 33 odds, 35 – 39 odds Part A only, 41 – 53 odds
35 – 39 odds Parts B & C
67 – 73 odds
7 – 45 odds, 59 – 67 odds
If needed, you can run the
addition/subtraction through
the TI–84+ on 39–45 odds
1 – 5 odds, 11 – 19 odds, 25 – 29, 31 – 37 odds Part A only, 39 – 45 odds Part A
7, 9, 21, 23, 31 – 37 odds
only
Part B only, 39 – 45 odds
Part B only, 51 – 69 odds
1 – 7 odds, 15 – 19 odds, 21 – 73 odds
No problems/skills from the
text.
(Turn to page A–122 in Appendix C) 1 – 17 odds
Check 7, 9, 11 on TI–84+.
Just count the zeros on the
graph, no need to calculate
them.
7 – 61 odds
Although not specified in
the text, confirm your
answers to 43 – 61 by just
checking the TI–84+ graph
against yours.
7 – 21 odds, 27 – 31 odds, 45 – 53 odds
OK to use TI–84+ as a
(Run numbers through the TI–84+ as needed. The main work will be done by
regular calculator, as
hand, but the multiplying and dividing of any larger numbers can be done on the
needed, to multiply and
TI–84+)
divide large numbers.
Chapter 4: Exponential and Logarithmic Functions
HW #4: §4.1 – §4.5 (10 points)
Problems to be done Analytically (By hand – No Graphing Calculator)
21 – 27 odds, 39 – 51 odds
5 – 11 odds, 15 – 21 odds
Doubling Time Growth Model: #15, 17; Formula in black in middle of page 400.
(Continuous or Unlimited) Exponential Growth Model: #21; Formula in black at
top of page 402.
Half–Life (Decay) Model: #19; Formula in blue in middle of page 403.
(Continuous) Exponential Decay Model: Formula in black immediately below
orange box on page 405. This is not used in the problem set for §4.2. However,
Continuous Exponential Decay and its application to Carbon–14 dating (see
Example 4 on page 405) appear in §4.5. See problems #95–98 on pages 450–451.
23 – 89 odds
5 – 19 odds
Sound Intensity: #5, 7; Formula #1 on page 431.
Earthquake (Richter Scale): #9, 11, 13, 15; Formula #2 on page 433.
Rocket Equation: #17; Formula #3 on page 435.
pH Scale Equation: #19 (formula contained in the word problem)
7 – 55 odds, 61 – 67 odds, 85 – 97 odds
(For #7 – 21, you only need to solve algebraically, you do not need to solve
graphically.)
TI 84+ Problems/Skills
None.
Use TI–84+ as Scientific
Calculator.
None.
Use TI–84+ as Scientific
Calculator.
Use TI–84+ as Scientific
Calculator.
§5.1
§5.2
§5.3
Chapter 5: Modeling with Systems of Equations and Inequalities
HW #4: §5.1 – §5.3 (6 points)
Problems to be done Analytically (By hand – No Graphing Calculator)
TI 84+ Problems/Skills
11 – 35 odds
None.
5 – 25 odds
None.
33 – 45 odds
None.
The graph paper we used in class for §3.5 can be found at:
http://highered.mcgraw-hill.com/sites/dl/free/0072532947/78543/RectangularCoord.pdf
§5.4
Lots of different graph paper can be found at:
http://highered.mcgraw-hill.com/sites/0072532947/student_view0/grid_and_dot_paper.html
Not discussed in class, nor assigned.
§6.1
§6.2
§6.3
§6.4
§6.5
§6.6
§6.7
Chapter 6: Matrices and Determinants
HW #5: §6.1 – §6.7 (14 points)
Problems to be done Analytically (By hand – No Graphing Calculator)
19 – 49 odds
11 – 53 odds
15 – 43 odds
19 – 33 odds
7 – 11 odds, 21 – 25 odds
3 – 11 odds, 17 – 25 odds
17 – 23 odds
§7.1
§7.3
Chapter 7: Sequences, Induction, and Probability
HW #6: §7.1; §7.3 – §7.6 (10 points)
Problems to be done Analytically (By hand – No Graphing Calculator)
15 – 45 odds, 57 – 69 odds
7 – 43 odds
§7.4
7 – 49 odds
§7.5
9 – 25 odds, 33 – 47 odds
§7.6
5 – 53 odds
TI 84+ Problems/Skills
None of the problems here
are specifically TI–84+ only
problems. Your answers can
be verified on a TI–84+, and
some directions specify to
run the harder parts through
the TI–84+.
TI 84+ Problems/Skills
None.
Use TI–84+ as Scientific
Calculator.
7 – 17 odds and 21 – 27
odds should be done by
hand AND also
EVALUATED on the TI–
84+. 29 – 49 odds can be
written in exact form AND
also EVALUATED on the
TI–84+.
Use TI–84+ as Scientific
Calculator.
17 – 23 odds are the true TI–
84+ problems, but all of
these require the use of the
nCr button on your TI–84+
to finish off the answer.