Math 125 Introductory Algebra

Introductory Algebra - August 2008
Math 125 - Assignments: 8/25 - 10/15
Earl Rodd erodd@malone.edu Extension 8546 www.malone.edu/erodd

Monday 8/25

Due:
Class:

Course Introduction. Who you are? What you can control?
First concepts - English to algebra and back. Order of operations.

Wednesday 8/27

Due:

Hand in: problem set 1.1: 1-22
Work yourself and check to be sure you understand: problem set 1.1: 23,25,27,29,31,33,35,39,41,43

Class:

Review order of operations.
Values of expressions

Friday 8/29

Due:

Work yourself and check to be sure you understand: problem set 1.1: 63, 73, 101
Hand in: problem set 1.1: 24, 38, 42, 44, 68, 76, 88, 102, 104

Class:

The real number line.
Types of real numbers

Monday 9/1

Due:
Class:

No Class: Labor Day

Wednesday 9/3

Due:

To work yourself and check: Problem set 1.2: 1, 3, 5, 13, 15, 37, 39, 47, 49, 51, 53.
Hand in:
1. Problem set 1.2; 2, 4, 6, 8, 10, 14, 20, 22, 26, 30
  NOTICE: To do number lines, please print these blanks from the web site. Do NOT use handwritten number lines unless you are a good artist!
2. For each of these numbers, write the number and whether it is a Counting Number, Integer(but not a counting number), Rational(but not an integer), Irrational. The first two are done for you to show you how to do them.
  1. 77 counting
  2. 7/9 rational
  3. 2.5
  4. √5
  5. √9
  6. -10
  7. 1,000,100,200
  8. 1
  9. 3/5
  10. -17/25
  11. √4/9 (Hint: Trick)
  12. 16
  13. π
  14. -.000005
  15. 500.1

Class:

Factoring
Reducing to lowest terms

Friday 9/5

Due:

To do yourself and check odd answers in text: Problem set 1.2: 55, 57, 63, 65, 73, 75, 77, 79, 81
To hand it: Problem set 1.2 56, 58, 60, 62, 64, 66, 68, 70, 74, 76, 78, 80, 82, 84 plus BONUS (if you get these, you can score over 100) 86, 88. Hint: 66, 68, and 70 reduce to quite small numbers.

Class:

Absolute value
Commutative, Associative, Distributive
Identities
Combining terms/simplifying

Monday 9/8

Due:

To do yourself and check: Problem set 1.3: 1, 3, 5, 7, 9, 15, 17, 23, 53, 93, 113, 125, 127
To hand in: Problem set 1.3: 2, 4, 6, 8, 14, 16, 18, 26, 28, 54, 56, 70, 94, 98, 126, 128, 130, 132, 134, 138

Class:

Adding and multiplying fractions

Wednesday 9/10

Due:

To hand in: Problem set 1.3: 30, 32, 60, 68, 102, 104, 106, 110, 114, 116

Class:

Dividing fractions
Dividing by zero

Friday 9/12

Due:

To hand in: Problem set 1.4: 6, 8, 10, 12, 26, 28, 30, 44, 96, 100, 116

Class:

Review today's homework problems on board.
Sequences (will not be on exam).

Monday 9/15

Due:
Class:

Exam 1. Covers Chapter 1 sections 1.1-1.4. Remember, you may bring a calculator and 1 page of handwritten notes. You may not share a calculator with another person!
Hint on studying: Review your homework and worksheets used in class. You can also use the "Chapter 1 Review Test" in your textbook - the answers are in the back of the text.
A study guide explaining the kinds of problems to look for on the exam is available if you click here.

Wednesday 9/17

Due:

To work yourself and check: Problem set 1.5: 1, 3, 5, 9, 19, 41, 43.
To hand in: Problem set 1.5: 2, 4, 6, 8, 10, 20, 38, 42, 54.

Class:

Review Exam
Equality Principle

Friday 9/19

Due:

To work yourself and check: Problem set 2.1: 1, 3, 5, 19, 31, 49
To hand in: Problem set 2.1: 2, 4, 6, 12, 18, 20, 36, 38, 50, 56, 106, 108. BONUS (can score over 100): 104.

Class:

Formulas
Percentages

Monday 9/22

Due:

To work yourself and check: Problem set 2.2: 1, 5, 9, 21, 27, 31, 35, 49, 65, 67, 69
To hand in: Problem set 2.2: 2, 4, 10, 22, 28, 32, 36, 50, 66.

Class:

Percentages
Word problems - how to write equations from sentences. In Section 2.3, we will only be doing geometry and percent problems, not interest problems.

Wednesday 9/24

Due:

To work yourself and check: Problem set 2.3: 1, 3, 7, 11
To hand in: Problem set 2.2: 68, 70.
To hand in: Problem set 2.3: 2, 4, 6, 12, BONUS 9 (answer is in the book - you get credit for showing HOW to do it).

Class:

More on word problems
Equations with inequalities

Friday 9/26

Due:

To work yourself and check: Problem set 2.4: 1, 3, 5
To hand in: Problem set 2.3: 8, 14, 16. BONUS 10 (Note on 10: the INNER rectangle has a perimeter of 42.)
To hand in: Problem set 2.4a: 2, 4, 6. Note: You are to solve these problems (e.g. x> 2) AND graph them. You may neatly handwrite graphs or print these blanks.

Class:

Review homework
Prepare for exam
Inequalities

Monday 9/29

Due:
Class:

Exam 2 on Sections 1.5 - 2.3. Section 2.4 is not on this exam. Study Guide is here.

Wednesday 10/1

Due:

To work yourself and check: Problem set 2.4: 17, 29, 53, 57.
To hand in: Problem set 2.4b:
- 8, 12, 18, 22 Solve and graph
- 30, 32 Write the answers in interval notation (e.g. (0-4))
- 54, 56, 58.

Class:

Review exam
Absolute value equations.

Friday 10/3

Due:

To work yourself and check: Problem set 2.5: 1, 5, 7, 11, 13, 27
To hand in: Problem set 2.5: 2, 4, 6, 10, 12, 14, 28

Class:

Review absolute value equations
Graphing

Monday 10/6

Due:

To work yourself and check: Problem set 2.5: 29, 31, 40
To hand in: Problem set 2.5: 30, 32, 34, 36
To work yourself and check: Problem set 3.1: 1, 3, 5, 9
To hand in: Problem set 3.1a: 2, 4, 6, 8 Note: 2, 6, and 8 must be done on graph paper.

Note on graphs: Unless your hand artwork is very good, please use graph paper or you can use preprinted graphs you can print from the Internet. These have the axes already printed. A handy one is here http://donnayoung.org/math/m08/coordnt/6grid.pdf and has 6 graphs per page. Other choices are available by clicking here.
Class:

Slope

Wednesday 10/8

Due:

To hand in: Problem set 3.1b: 10, 12, 18, 20, 30(a, b, c), 36, 52 Note: 10, 12, 18, 36 must all be graphed.
To work yourself and check: Problem set 3.2: 1, 3, 5, 7, 25, 31, 33
To hand in: Problem set 3.2a: 2, 4, 6, 8, 26, 32, 34, 40. Note: 8, 26 must be graphed.

Class:

Slope

Friday 10/10

Due:

To hand in: Problem set 3.2b: 12, 16, 36, 38 Note: 12 and 36 must be graphed.

Class:

Review today's homework to prepare for exam.
Equation of a line

Monday 10/13

Due:
Class:

Exam 3. Through section 3.2. You do not need to bring graph paper to the exam. Graphs are printed on the exam. Study Guide is here.

Wednesday 10/15

Due:

To do yourself and check: Problem set 3.3a: 1, 3, 5, 9, 21, 23
To hand in: Problem set 3.3a: 2, 4, 6, 8, 10, 22, 24

Class:

Review exam
More on equation of a line
Note: We do not cover sections 3.5, 3.6, and 3.7.

No class Friday 10/17 - Fall break - See second half assignments page for assignment for Monday 10/20.