MATH 150 PRECALCULUS
FALL 2007
Friday, October 5
I sat down yesterday and wrote up a set of problems that seemed reasonable for the first exam. It has yet to be polished, but will be formalized next week. Anyway, right afterward I went through the textbook and looked at problems that looked (vaguely) similar:
P.1 # 1, 55
P.2 # 17, 21, 31, 95, 155, 179
P.3 # 29, 49, 85, 93
P.4 # 9, 53, 55, 61
P.5 # 25, 33, 37, 81
P.6 # 1, 3, 5, 9, 11, 33, 35
P.7 # 3, 43, 53, 55
P.8 # 9, 11, 25, 37
P.9 # 7, 19, 33, 41
P.10 # 15, 19, 23, 39
This is NOT an assignment, but rather a sort of review sheet for the exam. Look these problems over and try them. The answers ought to be in the back of the book. If you want more detailed solutions, look over the homework solutions posted below for ideas.
Good luck!
Wednesday, October 3
Here is the homework due on Friday (sorry it was posted late!):
P.10 # 9-12, 16a, 24a, 28, 30, 32, 42, 48, 56, 58, 60, 70
While I put together a review sheet for Exam I (Friday, October 12th!), here are all the solutions to homework assignments handed in so far:
solutions to the assignment on Real Numbers(P.1)
solutions to the homework assignment on Solving Equations (P.2)
solutions to the Graphing assignment(P.3)
solutions to the assignment spanning P.1, P.2, and P.3
solutions to the assignment on Straight Lines (P.4)
solutions to the assignment on Functions from section (P.5)
solutions to the assignment on Graph Information (P.6)
solutions to the assigment on Graphs and Transformations (P.7 and P.8)
solutions to the assignment on Function Combination and Composition (p.9)
Sunday, September 30
Homework due Wednesday:
P.9 # 6, 16, 20, 34, 42, 44, 46, 58, 64
Also, if f(x) = (x+2)(x-4) and g(x) = (x+1)(x+5), what are (a) (f + g)(x) and (b) (f ·g)(x).
Here, the "·" is my attempt to depict function composition.
Friday, September 28
Here are solutions to the assignment on Graph Information, P.6.
Homework due Monday:
P.7 # 6, 30, 44, 48, 54b, 56b, 58b, 60b, 64, 66
P.8 # 6, 10, 12, 14, 18, 22c, 32c, 48
Wednesday, September 26
The more I look at the book, the more I see no decent set of homework problems to give you. Later, I'll post and assignment that will be due on Monday.
Here are the solutions to the assignment on Functions from section P.5.
Monday, September 24
Homework due Wednesday:
P.6 # 2, 4, 6, 8, 10, 12, 14, 16, 24, 32, 34, 36, 38
Thursday, September 20
Here is the assignment on Functions that will be due on Monday:
P.5 # 2, 4, 10, 26, 30, 32, 38, 44, 58, 60, 68, 70, 72, 82, 92
Tuesday, September 18
Here is the assignment due Friday:
P.4 # 2, 6, 12, 16, 44, 52, 54, 66, 68, 101, 102, 103, 104, 108, 112
Here are solutions to the Graphing assignment due on Monday.
Monday, September 17
Here is the homework assignment for Wednesday:
P.1 # 6
P.2 # 20, 24, 34, 38, 64, 80, 104, 114, 138, 142, 160, 184
P.3 # 20, 28, 36, 86, 88, 90, 92, 96
Here are the solutions to the homework assignment on Solving Equations (P.2).
Thursday, September 13
Homework for Monday:
P.3 # 2, 6, 44, 46, 50, 54, 62, 64
Here are the solutions to the assignment on Real Numbers (section P.1).
Tuesday, September 11
Homework for Friday:
P.2 # 14, 18, 22, 30, 32, 36, 48, 56, 60, 72, 78, 94, 100, 110, 136, 148, 156, 172, 176, 180
Sunday, September 9
Homework for Wednesday:
P.1 # 2, 12, 18, 24(bc), 28(bc), 32, 40, 42, 44, 46, 50, 54, 56, 60, 82, 84, 98, 100
Note: P.1 represents "prechapter 1," not page 1. This assignment begins on page 9.
Also, here is a detailed proof that the square root of 2 is irrational.
Finally, here is a bonus function to figure out:
f(1) = 3, f(2) = 3, f(3) = 5, f(4) = 4, f(5) = 4, f(6) = 3, f(7) = 5, f(8) = 5, f(9) = 4, f(10) = 3, and f(11) = 6
[hint: this function is not given by a formula]
Friday, September 7
Homework for Monday:
think about triangles
think about functions
enjoy the weekend
Wednesday, September 5
Homework due Friday:
On the back of a piece of paper, write down three functions
On the front side of the paper, plug 5 numbers into each of those functions and give the result
I'll try to guess your function!
Monday, September 3, 2007
Here is the syllabus for this course, as well as a schedule for the semester (subject to change).
If you have any trouble reading this or any of the other files posted on this page, you need to go to http://www.adobe.com/products/acrobat/readstep2.html to get a copy of Adobe Reader.