Section 1.2-Due January 31, 2011
Algebra Aerobics, p. 18: 1, 2 Exercises, p. 19-22: 9, 12, 14, 16, 18
Algebra Aerobics, p. 18 : 1a. Describe: Here we take an x, square it and multiply by 3, then subtract that x from the result and add 1. b. On checking th
Review Sheet Test 1 over Sections 1.1-2.9 Given Friday, February 18, 2011
The link for the 3rd edition (see Blackboard site) has links to web quizzes. There you can find chapter quizzes for Chapter 1 and 2, which would be good practice for preparing for t
January 31, 2011
Visualizing Data
Announcement
The tutor room is open now-Mondays, Tuesdays, and Thursdays, 6-10 pm in Taylor 220.
Jesus Often Taught with Stories
We call them parables Used situations his audience was familiar with Used them to teach le
January 28, 2011
Now to Section 1.2 Describing Relationships between Two Variables
Ways to Visualize Two-Variable Data
Table Scatter Plots Equations (is actually one of our goals for ways to describe data) 60-second summary
Income
Table,Scatter Plot,
MAT 1143
College Algebra Click to edit Master subtitle style Spring 2011 January 26, 2011
Section 1.1
The book titles it Describing Single Variable Data
Variable
Something that changes from person to person or situation to situation Data is information co
MAT 1143
College Algebra Click to edit Master subtitle style Spring 2011 January 24, 2011
Roll-Using I-clickers For the roll, enter letter when name appears in blue (in middle) Confirm by entering 2nd letter that appears Will use for attendance and pa
February 16, 2011
Click to edit Master subtitle style Review for Exam
Reminder
Exam 1 will be on Friday, February 18 It will cover material from 1.1 through 2.9
Review
Important topics for upcoming exam are on a review sheet in a separate course documen
February 14, 2011
Sections 2.4 Master Click to edit & 2.9 subtitle style
Reminder
Exam 1 will be on Friday, February 18 It will cover material from 1.1 through 2.9
Slant on Data
As we see data presented, we need to consider some questions?
What is the
February 7, 2011
Sections 2.1-2.3 Click to edit Master subtitle style
Graphs with Stories
Obj104
Obj105
Which student is in trouble with their parents?
Why? How might they slant the truth?
Obj106
Average Rate of Change
As indicated with the previous s
Feb 4, 2011
Sections 1.4-1.5 Click to edit Master subtitle style
More Terms About Functions
Domain-set of possible inputs
May be specified Like Positive Reals Or all reals but x = 3 May be merely implied Usually merely implied (all reals)
Codomain-set o
February 2, 2011
Section edit Click to 1.3 Master subtitle style
Function
What something does Romans 11:4-5
Just as our bodies have many parts and each part has a special function, so it is with Christs body. We are all parts of his one body, and each o
February 11, 2011
Click to edit Master subtitle style Sections 2.7-2.8
Reminder
Exam 1 will be on Friday, Feb. 18 (1 week away). It will cover material from 1.1 through 2.9
Review
Important topics for upcoming exam are on a review sheet. Also in a separat
February 9, 2011
Click to edit Master subtitle style Sections 2.5 and 2.6
What if Rate of Change is Constant?
If the average rate of change is ALWAYS the same We drop the average Say rate of change Have a line of that slope
Obj105
Start with Info
Migh
Review for Test 2 Friday, March 11, 2011 Sections 3.1-3.3, 4.1-4.3, 4.5
Create systems of equations to model linear functions and use model to compare the functions (find solution to the system) (Q2), review. P. 205-#4 Solve systems of equations by elimin
March 9, 2011
Click to edit Master subtitle style Review For Exam
Exam 2
Exam 2 will be Friday, March 11 It will cover 3.1-3.3, 4.1-4.3 and 4.5
Solve |x-1| = 3
A: 4 only B: 4 and -4 both C: 4 and -2 both D: 2 and -2 both
Simplify: (27) - (12) A: (15
March 7, 2011
Click to edit Master subtitle style Sections 4.5b
Exam 2
Exam 2 will be Friday, March 11 It will cover 3.1-3.3, 4.1-4.3 and 4.5
What about am/n
Obj101
This gives meaning to ALL fractional exponents If n is even, a must be positive Both o
March 4, 2011
Click to edit Master subtitle style Sections 4.5a
Exam 2
Exam 2 will be Friday, March 11 It will cover 3.1-3.3, 4.1-4.3 and 4.5
Fractional Exponents
In 4.2 we used positive integer exponents In 4.3 we added 0 and negative integer expon
March 1, 2010
Click to edit Master subtitle style Sections 4.2-4.3
Exam 2
Exam 2 will be Friday, March 11 It will cover 3.1-3.3, 4.1-4.3 and 4.5
Exponents
We looked at problems like 108 to express LARGE NUMBERS We looked at problems like 10-9 to express
February 25, 2011
Click to edit Master subtitle style Section 4.1
Chapter 4
We have looked at functions in general in Chapter 1 We have looked at linear functions, a particular type of function, in Chapters 2-3 We now lay the foundation for our next major
February 23, 2011
Click to edit Master subtitle style Sections 3.3
Above and Below the Line
Sometimes we are interested in the regions above and below the line Called a linear inequality Like: 2x + y < 4 Graph the line It divides the plane into 3 parts
February 21, 2011
Click to edit Master subtitle style Sections 3.1-3.2
Exam 1
Return and go over exam 1 Exam 2 will be coming up rather quickly after we finish Chapter 4. I expect that will be Friday March 11 (2 1/2 weeks, 5 more lectures, away)
Two Lin
March 30, 2011
Click to edit Master subtitle style Sections 4.7
Exact Answer
Rule of 70 gave us approximate answer to 2 = ax For the EXACT answer, we need to introduce a new function that reverses the role of input and output on the exponential This i
March 28, 2011
Click to edit Master subtitle style Sections 5.6 (and a bit of review of 5.5)
Exam 3
Exam 3 should be Wednesday, April 20 (still 3 weeks away) It will cover 4.7, 5.1-5.6, 6.1-6.5 We still have lots more to cover on our use of exponential
March 18, 2011
Click to edit Master subtitle style 5.5 Growth and Decay Rate (as opposed to factor)
Rate
You will see the term rate used in a couple related meanings. Rate of Change
What we used for lines-where it was constant Change in Output/Change in
March 16, 2011
Click to edit Master subtitle style 5.3-5.4 Exponential Decay and Graphs
Exponential Growth
Our general form Q=C*ax C is initial amount and a is growth factor We only looked at a > 1growth What if 0 < a < 1? (We NEVER look at a < 0, since
March 14, 2011
Click to edit Master subtitle style 5.1-5.2 Exponential Growth
Warning
The material up to this point, most of you had probably seen at some point The material in chapter 5-6 MAY be new Even if not new, the way it is presented is probably
April 18, 2011
Click to edit Master subtitle style Review
Exam 3
Exam 3 will be Wednesday April 20 It will cover 4.7, 5.1-5.6, 6.1-6.5 Review sheet Two review QUIZZES that I produced are available on Angel. (can do for extra credit) Planning a review se
April 11, 2011
Click to edit Master subtitle style Section 6.5
Exam 3
Exam 3 will be Wednesday April 20 It will cover 4.7, 5.1-5.6, 6.1-6.5 Review sheet Two review QUIZZES that I produced are available on Angel. (can do for extra credit) Will not have c
April 8, 2011
Click to edit Master subtitle style Section 6.4
Exam 3
Exam 3 will be Wednesday April 20 It will cover 4.7, 5.1-5.6, 6.1-6.5 Review sheet Two review QUIZZES that I produced are available on Angel. (can do for extra credit) Will not have cl
April 6, 2011
Click to edit Master subtitle style Section 6.3
Exam 3
Exam 3 will be Wednesday April 20 It will cover 4.7, 5.1-5.6, 6.1-6.5 I will be getting a review sheet ready for you There will be extra credit work that can be done on Angel to review