I LOOOOVE FACTORING!

Here's your job tonight and this weekend: to make sure you can FACTOR!

Use the interactive textbook (link on the right) to review some factoring. Or, watch some youtube videos...do whatever outside research you need to do to get some help! Don't just ignore this topic!

Tonight, please complete the 12 factoring problems provided in class. You do not need to name the type of factoring; instead, just do the math and factor each.

Tomorrow I will check this homework along with last night's homework (15 more factoring problems). I will also provide you with answer keys for each to use these problems as a resource.

These will be your last two grades (homework grades of course) for the first quarter! Good luck!

**If you actually checked the blog, prove it....write down the poll question and the poll options on a piece of paper, bring it in tomorrow, and I will give you 3 bonus points on a quiz grade! Keep this to yourself! Don't give this information to people who don't check the blog, or I won't continue to do things like this! It's for the people who are responsible and check this site ONLY!**

Did you "ace" the test today?

Happy Wednesday! Hopefully you're feeling confident about today's test...I'll have them all graded for you by Friday at the latest...

Tonight, get ready for some factoring (tomorrow)...please complete the 15 factoring problems provided in class. This is a fundamental skill for us, as we'll be exploring quadratics and will need to find the x-intercepts using factoring (and other methods).

*Numbers 6 and 11 are not factorable...the rest of them are...

DON'T FORGET--STAMPS ARE DUE TOMORROW!

See you manana!

TEST TOMORROW!

STUDY, STUDY, STUDY! Your only homework it to prepare to ace tomorrow's test and end the first quarter on a high note!

Here's a breakdown of some of the questions on tomorrow's test...primarily sections 1.5 to 1.7, some 1.4

• Find (f + g), (f - g), (fg), and/or (f/g) (Combinations of Functions)
• Evaluate (ex: (f + g)(2))
• Compositions of functions
• Use compositions to determine if two functions are inverses
• Find the inverse of a function (switch x, y and solve for y)
• Graph f(x), f inverse, and y=x
• Determine if a function is one-to-one (horizontal line test)
• Shifting of functions
• Linear Regression (Line of Best Fit)
• Find the equation and correlation (r)
• Interpret correlation (strength and direction)
• Solve for y given a value of x
• Solve for x given a value of y

Good luck! I hope you all get an A+!

Back to work!

Another start to another week! Yay!

Tonight, please complete the "Population of East Hartford" activity (if you didn't already in class).

Period A: In addition, please complete the 5 questions using a line of best fit to predict the temperature (in Fahrenheit) based on the number of chirps (per second) of a ground cricket.

The regression equation (part b) is below--use this to check your response and complete questions c,d and e.

Equation y = 3.244x + 26.012

Just a couple other reminders...

1. Test Wednesday!
2. STAMPS are due Thursday! Make sure you count (twice), write the total on the front, and staple/paper clip them together. Or, some students in the past have put their stamps in an envelope or ziploc bag. I only need the actual "stamp," in case it's in your notes--I don't want to take a page of your notes!

It's the weekend!

Have a great weekend! Enjoy the sunny but chilly weather, maybe watch some World Series baseball, and hopefully check in on the Giants winning their second straight game.

Sorry I was a bit disorganized in today's lesson....the gnome costume threw me off....

This weekend, please complete the following questions regarding linear regression (lines of best fit). These were given to you on a handout in class; if you lost it, the questions are below:

The following table gives the time spent on a job (in years) and the amount of money earned (in dollars):

Time	0	1	5	10
Earnings	20,000	22,000	30,000	40,000

a. Write an equation for the linear regression.

b. What is the value of the correlation, r? Interpret its meaning (comment on the strength and direction of the correlation).

c. Use your equation from (b) to find the earnings for an employee who has spent 7 years at this company.

d. Find the earnings for an employee who has worked for 6 months.

e. How long would we estimate an employee has worked at the company if he/she earns $34,000?

f . How long would you expect an employee to work before they earn $100,000?

Here are some tips for using your calculator (for questions a and b):

• Use this link to create a scatter plot: http://calculator.maconstate.edu/scatterplot/index.html
• Use this link to find the regression equation: http://calculator.maconstate.edu/linear_regression/index.html
• **If your calculator does not give you r and R^2, you first need to set it to do so. Press 2nd, zero to go to the catalog. Then, scroll down and select "DiagnosticOn." Press enter twice. This sets our calculator to show r; now, do the steps to find the regression equation again (LinReg) and it'll show these values.

Finally, here are the answers to your homework, so you can make sure you're doing everything correctly:

a.  y = 2,000x + 20,000

b.  r = 1; this is a perfect (strongest possible), positive correlation. As time spend on a job increases, so does the amount of money earned.

c. y = 2,000(7) + 20,000 = $34,000

d. y = 2,000(0.5) + 20,000 = $21,000

e. 34,000 = 2,000x + 20,000; x = 7 years

f. 100,000 = 2,000x + 20,000; x = 40 years

Thursday....

Enjoy your half day and extended afternoon!

While you're enjoying it, please complete the activity we started in class today regarding the graphs of inverse functions. Remember, this is an 18 point classwork grade...so don't forget to finish it up and bring it to class!

Also, if you were absent Tuesday, you need to complete the 1.6 Practice: Inverse Functions worksheet and bring it in tomorrow. Don't forget!

Tomorrow we finally wrap up Unit 1 with some linear regression....I'm pumped!

Hump Dayyyyy!

So....about that homework....

Tonight, please finish the homework assigned yesterday with the sub. You need to complete the circled problems on the photocopied page from your textbook. If you lost the paper, no worries...here are the problems below...

Page 69: 21-24, 29,31,33,35, 53-62, 67, 68  (this is a lot...if you were on afield trip yesterday you can finish all of these for Friday, just show me some progress tomorrow. But ONLY if you were on the field trip.)

Hopefully you're already done with that.

You also need to find the inverse of each function below:

1. f(x) = (x + 3)/(x - 2)

2. f(x) = (2x + 3)/(x - 1)

Finally, for those of you who were out yesterday, please complete the "1.6 Practice: Inverse Functions" worksheet for Friday. This will be collected and graded.

Enjoy! See you tomorrow!

(Short quiz tomorrow?....probably...)

Back to the grind...

Back to work!

There's no homework tonight (Monday). However, you'll have a bunch tomorrow...so if you'd like to get a head start and have less (or no) homework tomorrow, here's what you'll have to do...

Tuesday HW:
Page 70: 21-24, 29, 31, 33, 53-62, 67, 68

#weekend

We made it through a short week (but I think it felt longer than 4 days...)

This weekend, practice some inverse stuff....please complete:

Page 69: 1-8

A few more things...if you were absent or just didn't do some prior homeworks, this weekend gives you an opportunity to make up for that. You can complete the homework checked Thursday and then also Friday to get rid of any "0's" you might have.

If you were absent yesterday (Thursday), you also need to complete the homework assignment below (and show me Wednesday's homework too if you didn't do that!)

HW checked Thursday: page 59: 55 - 61

HW checked Friday: Page 69: 9a, 11a, 13a, 15, 17, 19

***Anyone who did not do these originally can turn in these problems on Monday to receive full credit. However, neither of these assignments will be accepted after Monday.

Finally, you also have the opportunity to do an "extra credit" homework assignment. This would replace a prior zero you might have (or, if you don't have any zeros, this will just be extra homework points):

If you like, complete the two graphs provided in class. You are given the graphs of f and g, and asked to graph (f + g)(x). This must be turned in Monday. After Monday, this also will not be accepted (for extra credit):

Hints:
1. Look at page 58, #'s 1 and 3. These are the same types of questions, and you can use the answers in the back of the book to help you figure out the solution.
2. Create a table of values with the heading below...this will help you consider which points to plot for the graph of (f + g)(x):
                            X values:                f(x):              g(x):               (f + g)(x):

Thursday's Homework...

Tonight, enjoy some inverse functions!

For each problem listed, find the compositions to determine if the two functions given are, in fact, inverses of one another (if so, the compositions should equal x--the identity function).

—Verifying Inverses:

—Page 69: —9a, 11a, 13a, 15, 17, 19

Tuesday and Wednesday

PreCalc peeps...here's the homework plan for today and tomorrow...

Tuesday Homework:
page 59: 55 - 61

*For period A this will be checked on Thursday (no class tomorrow)*

Wednesday Homework:
None! 

Tomorrrow in period D we'll do an activity regarding compositions of functions. Then, on Thursday we'll start section 1.6--inverse functions--in both classes. Get pumped up!

Enjoy your afternoon!

Long Weekend!

I hope you all enjoyed your day at the pep rally and are ready for a nice long, relaxing weekend.

There isn't too much homework--just complete the worksheet regarding combinations and compositions of functions that we started in class. A little later in the weekend I'll post all of the answers for you to check your work. This homework is more about your own practice than about "credit." On Monday you'll have a 24 point assignment based on the same stuff--so make sure you know what you're doing!

Remember, you can always use the interactive textbook (linked on the right) if you need more practice or help!

See you all Tuesday! Enjoy your weekend!

Thursday...

For many of you, tomorrow will be an early morning of fun with your friends and school spirit. Enjoy it! Have fun, but be safe! And try not to wake up too early!

Tonight, please complete the following (since most of you had time to get a significant chunk done in class, I'm DEFINITELY going to check this)...

page 59: 35-38, 45, 47.

Here are the problems if you don't feel like using your book/carrying it around...

Enjoy!

I hope you all got an A on today's test!

For the 499312 of you who were absent, you'll have to make it up as soon as possible. (within the next 3 school days)

Test Tomorrow!

Tomorrow's a big day....test day!

Make sure you STUDY. Use the interactive textbook (linked on the right) to help. Look at old tests and quizzes from sections 1.1,1.2,1.3, and 1.4. Put in the work to do well--tomorrow will have a significant impact on your grade!

If you were absent today you will still take tomorrow's test. We didn't learn anything today or yesterday that's on it, nor did you miss any review.

When I get home I will post a picture of the topics we listed on the board for the test. I don't have good enough service to email myself the pic in my classroom....stupid T-Mobile....

I wish you all the best! See you manana!

Test Topics:

2's Day HW

Test Friday! Or Thursday! We'll vote tomorrow (in case you don't want to have the test on pep rally day)...

Tonight, please complete the following in your textbook regarding combinations of functions:

Page 58: 5,7,9,13,15,17,19

*5,7, and 9 have parts a,b,c,d--do all of them!

Monday's Homework...

Last Monday for a bit, we have a 3 day weekend next week!

Tonight, please finish up section 1.4--in your textbook (or on the photocopied page I provided in class), please complete the following:

page 49: 15-26 (For each graph please write the equation of the function).

Tomorrow we'll review these answers in class...

And just a heads up...we will have a test on sections 1.2 to 1.4 in class on Friday!

It's the Weekend!

Let's hope the Giants win this weekend for the sake of my sanity.

Enjoy your weekend! Go outside! Eat some delicious food! Do something nice for someone!

This weekend, please complete the 24 questions I provided in class regarding graphing/writing equations of functions with shifts/reflections. On Monday we'll pair up and look at the answers and get ready to move on to section 1.5--combinations of functions.

Also, don't forget--we have a quiz Monday based on "graphical analysis".

Tomorrow's Friday!

I hope you all had a good time being outside today...

Tomorrow we'll start class with a short quiz. Then, we'll do some more work dealing with shifting, reflecting, and stretching functions.

There's no homework tonight--just be ready to work tomorrow!

Enjoy your afternoon!

Algebra Aerobics Tomorrow!

I can't wait for ALGEBRA AEROBICS tomorrow! Woooooo!

Tonight, please get ready by practicing some graphing with shifts/reflections...for homework, please complete:

page 49: 51 - 63 (odd)

*Ignore the directions. For each of these I want you to graph the function by hand*

See you tomorrow!

2's Day

Guess what...we have a pop quiz tomorrow! The quiz will be similar to the homework we had over the weekend (or after our test Friday) and went over yesterday. You will have to read a graph to determine when a function is...

• Increasing/decreasing/constant
• Positive/negative
• Domain/Range
• X and Y intercepts
• Evaluate the function (Ex: f(3))
• "Find all values of x such that f(x) = 4"

Be ready!

Tonight, please complete the following in your textbook: page 49: 33 - 38.

Tomorrow we'll finish our notes so that we can do some algebra aerobics on Thursday!