Math 242 (Phillips):
Calculus for Business and Social Science 2
This is the home page for N. C. Phillips'
Calculus for Business and Social Science 2 (Math 242)
at the University of Oregon, Winter quarter 2020.
Quick links:
Contents:
Summary of updates (most recent first)

5 January 2020:
The following items have all been posted:
the syllabus (subject to slight revision),
the first week's WeBWorK,
the blank worksheet for the first lecture,
and links to videos for the first week.
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Basic information

Course number, time, and place: Math 242,
CRN 23658 (lecture),
MW 8:309:50 am, 110 Fenton,
and one of the following discussion sections,
all taught by
Jay Hathaway:

Course title: Calculus for Business and Social Science 2.

Instructor: N. Christopher
Phillips.

Office: 105 Deady.
The office is on the main level at the east end of the building,
opposite the stairs.
Please knock.
I can't leave my door open, because if I do I get too many people
asking to borrow my telephone or pencil sharpener, or
where to find the math department office
or nonexistent rooms (such as 350 Deady).

Office hours: Mondays 2:002:50 pm, Tuesdays 3:003:50 pm,
Fridays 99:50 am,
or by
appointment.
Office hours are for this course and also for my other course,
Math 691.
Office hours will be subject to occasional rescheduling because of
committee meetings.
I may also meet with students working with me individually
during these times,
but such meetings are secondary;
you and the Math 691 students have priority,
and you are expected to interrupt meetings with other students.

Jay Hathaway's office: 324 Fenton.

Jay Hathaway's office hours:
W 34 pm, Th 89 and 1112 am.
(Not yet corrected on the syllabus.
Warning: the office hours on his website are from long ago,
and are not currently valid.)

Email
(plain text only: no html).
The subject line of your message should start with
"M242", followed by your last name,
then first initial.
I might use email occasionally to distribute general announcements.
I will give short replies to emailed questions.
I don't type at a reasonable
speed, so I will rarely answer complicated questions by email.
Please come to office hours instead.
When emailing me, please use plain text
(7 bit ASCII)
only.
That is, only the characters found on a standard English
language keyboard; no curved quotation marks, curved apostrophes,
accented letters, Greek letters, etc.
For writing math in plain text email, see
this
page.
In particular:

No html encoded (web page format, or "styled") messages.
See "Configuring
Mail Clients to Send Plain ASCII Text"
for how to turn off html.
(The University of Oregon webmail program is apparently capable
of sending plain text email.
The new Exchange program apparently defaults to html only.
If you are using that program, you will have to change its settings.)

No binary files or attachments (except by prior arrangement).

No Microsoft Word files.
I do not accept these under any circumstances,
since I don't have software that reads them.

No mime encoding or other encoding of ordinary text messages.

Course description (from the Catalog of Courses):
This is the second term of a calculus sequence for students
in business and the social sciences.
Students will learn techniques and applications of integral calculus,
derivatives and integrals of functions of several variables,
the method of Lagrange multipliers, systems of linear equations,
matrix algebra, systems of linear inequalities,
and an introduction to linear programming.
This course emphasizes modeling and applications to business
and the social sciences.
Applications include averages and moving averages,
continuous income streams, present and future values,
optimization and constrained optimization
of functions of several variables,
and systems of linear equations and inequalities
in business and social sciences.

Textbook:
Hoffmann, Bradley, Sobecki, and Price,
Calculus for Business, Economics, and the Social
and Life Sciences (Brief),
11th edition.

Syllabus
(still subject to minor changes).
Everything here is also there,
with better formatting and much more detail,
but not necessarily with links.
Most of the information there is not here.
Exception: There are no email addresses there,
since spammer address harvestors read pdf files.
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Links to course information
General links

Syllabus
(still subject to minor changes).

WeBWorK
(online outside of class homework assignments).

mikesmathchannel
(videos; unfortunately on a platform owned by Google).

Class Encore slide.
Class Encore is a University of Oregon program of organized small
group study sections for the course.
They are completely free, but signup is required and space is limited.
For Math 242, they are Thursdays 11:0011:50 am and
12:0012:50 pm, both times in 306 Deady,
starting in the second week of classes (Thursday 16 January).
They are led by Jixing (Harry) Zheng.
Sign up
here.
Week 1 links and files
Lecture 1 (Monday 6 January):
Lecture 2 (Wednesday 8 January):
Discussion section meeting (Wednesday 8 January or Thursday 9 January):
Week 2 links and files
Lecture 1 (Monday 13 January):
Lecture 2 (Wednesday 15 January):
Discussion section meeting (Wednesday 15 January or Thursday 16 January):
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Week 3 links and files
Note: No Lecture 1, due to holiday.
Lecture 2 (Wednesday 22 January):
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Week 4 links and files
Lecture 1 (Monday 27 January):
Lecture 2 (Wednesday 29 January):
Discussion section meeting (Wednesday 29 January or Thursday 30 January):
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Week 5 links and files
Lecture 1 (Monday 3 February):
Lecture 2 (Wednesday 5 February):
Discussion section meeting (Wednesday 5 February or Thursday 6 February):
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Week 6 links and files
Lecture 1 (Monday 10 February):
Lecture 2 (Wednesday 12 February):
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Week 7 links and files
Lecture 1 (Monday 17 February):
Lecture 2 (Wednesday 19 February):
Discussion section meeting (Wednesday 19 February or Thursday 20 February):

Midterm 2 study guide.

Solutions
to the problems in the Midterm 2 study guide.
(Remember that extra credit is available for finding mistakes.)

Sample Midterm 2 #1.

Corrected
solutions
to sample Midterm 2 #1.
The solution to Problem 10a has been corrected.
There were two mistakes: a factor of was 2 lost at the end of the
expression after the first "=" sign,
and the final answer was wrong because of the accidental
replacement of the square root of 6^3 + 6
with the square root of 26^3 + 6.
(Somebody got extra credit for catching this.)
These solutions have otherwise
still not been checked, and there are surely other careless mistakes.
Remember that there is extra credit for finding them!

Sample Midterm 2 #2.

Solutions
to sample Midterm 2 #2.

Sample Midterm 2 #3.

Solutions
to sample Midterm 2 #3.
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Week 8 links and files
Lecture 1 (Monday 24 February):
Lecture 2 (Wednesday 26 February):
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Week 9 links and files
Lecture 1 (Monday 2 March):
Lecture 2 (Wednesday 4 March):
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Week 10 links and files
Lecture 1 (Monday 9 March):
Lecture 2 (Wednesday 11 March):
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Finals week links and files
These sample exams and study guide don't cover Sections 6.4 and 7.17.3.
Sections 6.4 and 7.17.3 will be on the final exam.
Some further information related to Section 6.4 will be posted
on the weekend.
For Sections 7.17.3,
see the material posted for Midterm 1
and also the Midterm 1 you actually took.
It is likely, but not yet decided, that the
final exam will be given at the scheduled time,
but electronically and open book and open notes.
The questions on these samples were designed
for a closed book exam,
with only a note card available,
and many would have to be modified for
an open book exam.
Therefore the style of questions
may not be representative
of what will actually be on the final exam.

Instructions
for the remote administration of the "dry run" and real
final exams,
version of 17 March.

Partial
final exam study guide

Solutions to the
partial final exam study guide.

Study guide for Sections 5.15.3,
6.3, and 6.4.
all problems from the previous version are also here.
It differs from the previous version in that Section 6.4 is now
covered, and there are minor wording improvements elsewhere.
The new problems are 2125 and 32.
There won't be any additional problems on Sections 7.17.3.

Solutions to the
new version of the study guide.

Partial
sample final exam #1
(The red crossed out problems are relevant,
since we did cover Section 6.4.)

Solutions to partial sample final exam #1
(Old; written by somebody else.)

Partial
sample final exam #2
(The red crossed out problems are relevant,
since we did cover Section 6.4.)

Solutions to partial sample final exam #2
(Old; written by somebody else.)

Partial
sample final exam #3

Solutions to the partial sample final exam #3
(nothing has been checked!):
Page 3;
Page 4;
Page 41;
Page 5;
Page 6;
Page 7;
Page 8;
Page 81.
I don't have a scanner at home, so these are photographs,
one per page, file sizes mostly 7 to 8 MB.
Also, the images are sideways on my computer.

"Dry
run" remote final exam (used Tuesday evening).

Solutions
to the "Dry run" remote final exam (used Tuesday evening).
Note: Nothing has been checked.
As usual, extra credit is available for finding errors;
deadline Saturday at midnight.
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Important dates, according to the
Academic
Calendar at the registrar's office
(not guaranteed!)

Su 5 January:
Last day to process a complete drop (100% refund, no W recorded).

Sa 11 January:
Last day to drop this course (100% refund, no W recorded;
after this date, W's are recorded).

Sa 11 January:
Last day to process a complete drop (90% refund, no W recorded;
after this date, W's are recorded).

Su 12 January:
Last day to drop this course (100% refund, W recorded).

Su 12 January:
Last day to process a complete drop (90% refund, W recorded).

M 13 January:
Last day to add this course.

W 15 January:
Last day to change to or from audit.

Su 19 January:
Last day to withdraw from this course (75% refund, W recorded).

M 20 January:
No classes.

Su 26 January:
Last day to withdraw from this course (50% refund, W recorded).

Su 2 February:
Last day to withdraw from this course (25% refund, W recorded).

Su 23 February:
Last day to withdraw from this course (0% refund, W recorded).

Su 23 February:
Last day to change grading option or variable credits for this course.
(Tuition penalties apply when reducing credits.)
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This page maintained by
N. Christopher Phillips,
email.
Please email plain text
(7 bit ASCII)
only
(no web page coded files, Microsoft Word documents, binary
characters, etc.; see above for more).
Last significant change: 21 January 2020.
Additions of course materials are not considered
"significant",
but reorganizations are.