## Sunday, November 18, 2007

### Complex Numbers

Coming up:

- Complex numbers this week.

Posting for Points:

Who had a sibling in the talent show friday?

## Tuesday, November 13, 2007

### Long Division and Synthetic Divsion

Coming up:

- Homework is from section 2.3

Posting for Points:

How many roots do you expect to find from a quartic equation?

## Monday, November 12, 2007

### Factoring

Tomorrow we will talk about factoring polynomials beyond quadratics.

Coming up:

- Homework: pg. 149 #'s 35-40

Posting for Points:

What does the solution to a quadratic tell us about the graph?

## Thursday, November 8, 2007

### Test Tomorrow

Coming up:

-Test Tomorrow!!!!

Posting for Points:

Does Wile E Coyote ever catch the Roadrunner?

## Wednesday, November 7, 2007

### Quadratic Review

Coming up:

- Test Friday!!

Posting for Points:

Free posting point tonight!

## Tuesday, November 6, 2007

### Polynomials and Quadratic Review

The test this Friday will include only our Quadratic information (Solving for "a", using matrices, word problems, and finding the roots). We will review tomorrow and Thursday.

Have a great week!

Coming up:

- Test Friday!!!!!

- Tomorrow we will review

Posting for Points:

How was your class trip?

## Monday, October 29, 2007

### Friday and Posts this Week

This week there will be no posts due to class trips. Everyone have a safe and fun time!!

Have a great time on class trips!

Coming up:

- We will look at more polynomials when we get back.

- Your grades are up so be sure to check those if you have not seen them already

Posting for Points:

Free posting points all week!

## Thursday, October 25, 2007

### St. Louis Arch

The St. Louis Arch equation has been found. First we found the equation using our original method discussed in class yesterday (using the vertex to find the standard equation, and then solving for "a"). Then we introduced using Matrices to solve a quadratic equation. This was a brief introduction to Matrices, as we will spend an entire chapter on them next semester, but it is important that you see how useful they can be for solving Systems of equations and Quadratics.

If you were not in class you should visit the website on the right to see the steps in solving a Matrix.

We also analyzed these two equations (one from each method), and discussed the importance of "a" in the equation, and why the vertex is almost irrelevant! It all depends on exactly how you set up the graph, but you will always have the same parabola, as long as your "a" is the same. The other numbers just give you the transformations!!!

Have a great time at the Fall Festival!!!

Coming up:

- If you were not in class you should complete this worksheet (just numbers 1-6)

- Tomorrow we will use these same techniques to find another famous arch!!

Posting for Points:

Can you think of another famous arch? (Think fast food)

## Wednesday, October 24, 2007

### St. Louis Arch

Tonight for homework you must determine the equation (a quadratic) representing the St. Louis Arch using the picture provided in class. Use our word problems from class to help you set up the equation.

Have a great night!

Coming up:

- Homework: Find the equation representing the St. Louis Arch

- We will begin looking at matrices tomorrow

Posting for Points:

Where is the St. Louis Arch?

## Tuesday, October 23, 2007

### Quadratic (x-intercepts)

Let me know if you are still confused (when you post your comment) and I will post some examples tonight.

Have a great week!

Coming up:

- HW pg. 135 #'s 36-42 even, 78, 79, and find the x-intercepts from last nights homework (14-24)

- Tomorrow we will look at using Matricies to solve quadratics

Posting for Points:

From the standard equation of a quadratic, what do h and k tell you?

## Monday, October 22, 2007

### Standard Quadratic

Have a great week!

Coming up:

- Homework p. 134 #'s 9, 14-26 even

Posting for Points:

What is the equation for finding the axis of symmetry?

## Friday, October 19, 2007

### Midterm Grades

Have a great weekend!

Coming up:

- We will start looking specifically at quadratics on Monday

Posting for Points:

What is the UNC mascot?

## Wednesday, October 17, 2007

### Study for Midterm

Coming up:

- Midterm Tomorrow!!

Posting for Points:

Enjoy a free posting point!! (tell me how excited you are if you want)

## Tuesday, October 16, 2007

### Midterm Review

Coming up:

- Midterm this

**THURSDAY!!!**We have moved it from the original date (Friday).

Posting for Points:

When is your Midterm now? (sorry for the date changes but this should benefit everyone)

## Monday, October 15, 2007

### Problem Solving

I also handed back your tests from last week. Overall they were very good! Another job well done. Be sure to review ALL of your test material for the midterm this Friday!

We also looked at some Problem Solving situations using the material from the last chapter. You should have problems 1-7 (skip 2, 3, and 5) done for class tomorrow.

Have a great week!

Coming up:

- Homework: p. 125 #'s 1-7 (skip 2, 3, and 5)

- Midterm this FRIDAY!!!!!!

Posting for Points:

What is your favorite TV show? (We will use this data tomorrow)

## Friday, October 12, 2007

### Variation

We discussed 4 different types of Variation: Direct, Inverse, Exponential, and Joint. Be sure that you know the equations and standard shape of these relationships. If you still have questions, check out the links to the right.

Have a great weekend!

GO HEELS!!! Check out Late Night With Roy at Tarheelblue.com this weekend

Coming up:

- Homework: pg. 109 #'s 9, 11, 12, 39-44, 68

- Midterm next week!

Posting for Points:

Which school will have the best college basketball team this year????? (There is only one answer)

## Thursday, October 11, 2007

### M&M Data

In class you completed a set of questions dealing with the graph of the Weight vs. # in each bag, and found the regression line for this data. We will discuss this data tomorrow, and use the Starbucks data to create another plot.

Coming up:

- No Homework for tonight, unless you did not finish your Graph in class

- Midterm next week!

Posting for Points:

What does the correlation coefficient tell us about a graph?

## Wednesday, October 10, 2007

### Test (Transformations and Inverse Functions)

Coming up:

- Tonight you should rework the problem that was one the board at the end of class

- Be sure you have your Starbucks data with you tomorrow (just the table)

Posting for Points:

What did you think of the test?

## Tuesday, October 9, 2007

### MATHO and Test

Good luck studying!

Coming up:

- Test tomorrow!!!

- Midterm next week! (We will talk about this on Thursday)

Posting for Points:

What do you think is the best way to study for a math test?

## Friday, October 5, 2007

### Mathematical Modeling

After the review problems we introduced Mathematical Modeling, the process of analyzing and interpreting data. We learned the process for graphing statistical data, as well as finding the Linear Regression line for any set of points. Remember, when looking at a linear regression line you use the correlation coefficient to determine how exact your line fits the given data. The closer to 1, the better the fit. If you need a review of how to graph this data on the calculator click the link to the right.

For this weekend you need to do some research on the exponential growth of the Starbucks franchise. You should use the link on the right and navigate through until you find the Company Timeline. Read over the timeline as it gives interesting information. As you go through the information create a table of growth since the first franchise. Your first year will be 1971 when the first Starbucks opened in Seattle. Start this year as 0, and continue up from there. Notice that there will not be a number for every year, so only include what is given in this timeline. We will use this data next week!

Have a nice LONG weekend!

Coming up:

- Homework: Create a table of values for the year and # of Starbucks stores at the end of that given year.

- Test will be Wednesday October 10th!

Posting for Points:

Where was the first Starbucks? Are you a Starbucks fan?

## Thursday, October 4, 2007

### Test Review

Tomorrow we will begin looking at new material that will not be expected for the test.

Coming up:

- Test on Wednesday October 10th

- "Midterm" coming up on October 17th

Posting for Points:

What does it mean if you find the fog and gof of two functions to both equal "x"?

## Wednesday, October 3, 2007

### Inverse Functions

We will go over these tomorrow (you will be the "experts") and then we will go over your review assignment.

I have decided that the test will be moved to WEDNESDAY, October 10th. Please begin studying now because we will move on to new material starting Monday!

Coming up:

- TEST: Wed. October 10th (remember that the test is cumulative)

- No Homework, but begin studying!

Posting for Points:

What is the BEST method for determining if one given equation is the inverse of another inverse equation?

## Tuesday, October 2, 2007

### Stuck in the Airport

See you tomorrow!

Coming up:

- Both assignments due tomorrow (from Monday and Tuesday)

Posting for Points:

Who has the worst luck with flying?

## Thursday, September 27, 2007

### Composite Functions

We took a few notes on Composite Functions (basically operations for putting two functions together). Be sure that you simplify all of your composite functions!

Coming up:

- Homework: pg. 89 #'s 6-12 even, 17, 18, 31, 33

- Your next test is October 5th!

- Remember to meet OUTSIDE tomorrow for class. Meet at the courtyard steps over by the gym!

Posting for Points:

When is your next test?

## Wednesday, September 26, 2007

### Translations

Composite functions are pretty easy because it is just performing basic operations on 2 functions instead of 1. For example, (f+g)(x) = f(x) + g(x)....so if f(x) = x + 3 and g(x) = 2x + 2 then, (f+g)(x) = (x +3) + (2x + 2).....or simplified.... (f+g)(x) = 3x + 5

We will go over this tomorrow but you should look through the examples on pages 84-85 before class. This is your only homework, other than the question below, but make sure you do it!

Have a great day!

Coming up:

- Homework: Read over pages 84-85 and review your homework from last night; Also complete pg. 80 13-18

- Your next test will be Friday, October 5th!

Posting for Points:

Using your book and/or the brief notes from above, what would (f - g)(x) equal ? (it follows the same pattern as above)

## Tuesday, September 25, 2007

### Transformations

a) be sure that you have corrected the Greatest Integer Function as always rounding DOWN!

b) review how to read function values as coordinates. After reviewing the homework we created a key for Transformations (the way our standard graphs move). You should keep these notes with your Library of Functions.

For tonight be sure that you check out the website under math links labeled "Visual Functions." This website should help you visualize how translations occur. (Section 1.7)

Have a great day!

Coming up:

- Homework: pg. 79 #'s 1, 2, 4, 5, 9-12

- You will get your tests back tomorrow!

Posting for Points Question:

How will this function move from our standard graph of f(x)=x:

f(x)= x + 3

## Monday, September 24, 2007

### Library of Functions

Have a great week!

Coming up:

- Homework: pg. 71 #s 2-24 even, 29, 31, 43, 44

- You will get your tests back Tues. or Wed.

Posting for Points Question:

What is the name of this function: f(x) = c

## Friday, September 21, 2007

### Second Test!

Have a great weekend!

Coming up:

-We will begin looking at transformations of functions Monday (section 1.6)

-Your next test will be 2 weeks from today (Friday, October 5th)

Posting for Points Question:

From now on you will find a question here each day relating to new material learned in class. You will post a comment in response to the question and recieve 1 point for a correct answer. It will be required that you answer at least 3 each week!

For this weekend just submit a comment and say HI!

## Thursday, September 20, 2007

### Welcome!

The main purpose of this blog is to allow anyone that misses class to see what material we covered, as well as find some notes and diagrams used during that day's lesson.

There will also be questions posted each day. You MUST answer at least 3 questions each week as part of your weekly homework grade. You should check this website often for updates and notes!