Happy Holidays!!

I would just like to wish everyone HAPPY HOLIDAYS!!! Hope everyone is having a great time off school! And HAPPY NEW YEAR!!

Fun with Functions!

We went through this unit very fast knowing that winter break is coming up and we only have a couple more units to go before we finish math. When I look back at all the new things we learned, there are a lot. But I noticed that most of the new things we learned are linked to things we've learned in the past. As we all know, math is the science of patterns.

There were many things that I liked and didn't like about this unit. Usually I enjoy and like what we're doing only if I understand it well. I hate it when I don't understand what we're doing in class, I get this funny feeling in my stomach and I want to cry. But I'm a big girl, so I keep it in. I liked the Domain and Range stuff we did in class. I also like the functions and equations we do.

When I found out that we were going to be graphing again, I freaked. Graphing isn't one of my strengths in math. But I did start to understand things I didn't get before. I still am a bit sketchy in some areas, especially perpendicular stuff, but I am going to study like crazy on the break. I fear the exam!

Overall, all I got to say is that this unit went by quickly (faster than any pace I've went in math) and that I enjoyed it. I understood some stuff and others were challenging. That's what I like about math, the challenge of it. I hope this test isn't very difficult and I hope that everyone does well. Good luck tomorrow!
-SAMUS

Blogging for Test!

Well it's time for another test, and with another test is another reflective blog. Well this unit was functions and I'm apprehensive to say that it wasn't to bad. I don't want to regret saying that tomorrow. When you first look at it and it's very intimidating, but really the closer you look you can see that it's really a linear equation. Just instead of having a y you have f(x). Then it was time to substitute the numbers in for x which also wasn't too bad. Being taught the domain and range was a little tricky because first you have to remember which is which (domain=x, range=y). Also the concept of it going on forever or infinity. Once you understand the basics everything else comes more easily. I hope that the confidence I feel now is reflected on the test. I wish everyone goodluck tomorrow and study hard!!!=)

Bloging on bloging

FUNction and RELAtion.

This the a not bad until, it give me another chance to learn about graphing because in my science class right now, I am also going graph so this really helps me. In the begainning of this unit it was confusing because the the teacher explan to us saying a *function is a rule that turns "an in put" into "an out put" * A rule that turns one thing into another *a rule that turns a number into another number. when he tell us to write it down in our dictionary, i just go "Huh" "Eh" "what" "where" when" "how. because iam just going like INPUT? OUTPUT? what on earth are those. Later on when i see more examples and think about it, it really mean that to find out if a graph is a function or not then to check if you can see 2 dots of y-int. and only one of x-int. then the graph is not a function, but if you see one dot in the y-int. 1 dot in x-int then is a function.

-_- blogg

hi everybody. its the time of day where we HAVE TO BLOG.. FOR THAT ONE MARK =). anywayz. what i think of this unit is very confusing, frustrating, and hard. i really didn't understand much about this unit. i had difficulties and felt as if i should give up BUT, i will not give up. i will be studing soon and hope that it'll do me some good. tomorrow is also the last day, BEST WISHES FOR EVERY ONE ON THE TEST. MAKE THE LUCK BE ON YOUR SIDE... HAPPPYY HOLLIDAYYY EVERYONE =).

pre-blogging for test

Tomorrow is the last test of the year 2005 for pre-cal, wow the year went by so quickly. This unit is about functions and relations. I've learned lots of things in this unit such as functions, relations, domain, range and writing a new equation(example: f(x)=2x-2). I also learned how to write the range and the domain, for example the given range is (0,14). This means that the lowest point on the graph in the y-axis is zero and the highest is 14.Most of the things I've pretty much learned. Like the graph, table of content and an equation can tell you the all the same thing. Well good luck on the test tomorrow and may all of you people have a happy holiday=)

Blog For Test

Wow, just one more unit. I can't believe how fast the semester passed. This unit was probably the easiest, since it was a combination of the previous unit.

I think most of you thought it was easy too. The only problem for me during this unit was interpreting the graphs. But its not so much no more. I developed a new way to study on test. (just encase anyone wants to know.) Well, basically I finish my homework then study and read through my notes. So that I don't forget. Because my old way was the opposite, and I would forget what I read. Well I hope everyone has a good test. *And John D. way to go on your last test!*

Blog for the Upcoming Unit Test

Well, this unit goes by fast.. (this line is getting real old). Functions.. In the beginning, it was quite hard to understand and get it into my head but now.. it still is.. but not really :)? Well like always, it gets better near the end.

Domain, Range, Functions, Relations are all terms in this unit. The part that was most hard for me to understand in this unit was the difference between functions and relations but that part is long gone. I understand it all now thanks to the idea of using my head and ears ;).

I strongly believe that I'll do good on this test and so will everyone else because most of the stuff within this unit is very relative to what we already learned such as the equation of a line and solving for an unknown variable. It's quite straight forward but Goodluck to everyone anyway.

Functional Acrostics

Here's the new set of acrostics for you.

Blogging Prompt
Your task is to create an acrostic "poem" that demonstrates an understanding of functions related to any one of these concepts:

FUNCTION
RELATION
DOMAIN
RANGE
MAPPING
NOTATION

As an extra challenge (worth an additional bonus mark) try to make a Double Acrostic, that is, each line should begin and end with a letter of the word you are working with.

Remember, this is a bit of a race. Your answers have to be posted to the blog in the comments to this post. If someone has already used a word or phrase in their acrostic you cannot use the same word or phrase. i.e. It gets harder to do the longer you wait. ;-)

Here is an example of an acrostic that Mrs. Armstrong wrote:

Always in 2 dimensions
Region between the boundaries
Entire surface is calculated
Answer is in units²

Be creative and have fun with this!!

Sunday 3x the Funday

A triple header this weekend.

Mr. Zhong Kui will make you laugh. I think his "problems" are the easiest ones to solve.

Rat is another "escape" puzzle. Every time you do something wrong he squeaks.

No. 5 is a set of three puzzle/adventures to get a little boy out of trouble.

Have Fun!

Scribe

Today's class we wrote in our dictionary. Here are the notes just incase anyone wasn't in class:

FUNCTION NOTATION

Any function of x can be expressed by using the variable x and y.
Example: y= 2x - 3
y is a function of x

This allows us to generate a table of values for any function
Example: x-2-1 0 12
y-7-5-3-11

We can determine a specific output for any input.
Example: Find y when x is 7
y=2(7) - 3
y=11
-->There is a point on the graph of this function(7,11)
Using the function notation, f(x), we do exactly the same thing, but we are able to express the connection between the input and the output mor explicitly.
Example: Find f(7)
f(7) = 2(7) - 3
= 14 - 3
= 11
-->We also know there is a point on the graph at(7,11), but it is expressed much more explicitly.

All the following are essentially the same.
an equation y=2x - 3
a function f(x)=2x - 3
a mapping f:x-->2x - 3

Function notation, f(x), is used exclusively for functions. You cannot use function notation for Relations.
Relations are expressed either as equations or mapping.
Functions can be expressed in all three ways.
-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*

If you need help on how to solve functions and relations problems check A.Z.'s scribe post.
Homework exercise, exercise 49. Tommorow's scribe will be ----------------------------------------------------------------> Janet

Sunday Jumping Funday!

'The goal of the puzzle is to switch the the pegs on the left with the pegs on the right by moving one peg at a time.

Move pegs by clicking and dragging them to open slots. A peg may only be moved to an open slot directly in front of it or by jumping over a peg to an open slot on the other side of it. You may not move backwards. The game ends when you win or get stuck.'

Play the game here. Can you win the 8 peg game? ;-)

(Thanks again to Think Again!)

Last Minute Practice

OK folks, as promised, I've got two excellent little review quizzes you can take to practice your skills. If you have trouble with any of the questions, copy it down and post it to the blog so you can work on it together as a class.

Here are the quizzes:

• Rational Expressions (15 questions)


• Rational Equation Word Problems (15 questions)

Don't forget the links in the del.icio.us box!

Study hard and do the best work you can tomorrow .... work you'll be proud of. ;-)

blogin' on blogin'

Here we go again, blogin for the unit test. Alot of the things thats on this unit is basically all the information that was covered earlier in the year; adding/subtracting fractions and multiplication. The new materials were dividing(multiplying by the resiprocal and the restrictions(the non-permissible numbers). Complex trinomial that needs facting is still kind of confusing I still get it. Hope everyone gets pass this one of the last test... I think. GOOD LUCK:D

BLOG blog blog blog BLOG

this is one of the days where we have to study hard and get nervous for the unit test tomorrow. i hope everyone in my class is ready for the test tomorrow. study hard fellow class mates =). what i think about this unit is that i liked it more than "SLOPES" :) ... doesn't anyone agree with me!? i think "t-sa" agree's with me!! =) i liked learning about adding, subtracting, multipling, and dividing rational expressions because step 0: was to factor everything to the simpliest as we could and no doubt about it that i was excellent and loved factoring.. (most times) and it was great that i learned how to use some of my past learning to combine with rational expressions =). at one point i didn't know what in the world mr. k. was teaching the class, but the next day i caught up very fast, came in for help at lunch and now i think im about ready to do the test.
GOOD LUCK FELLOW CLASS MATES ON THE TEST TOMOROW. =)

Blog - Solving Rational Equations

Alas the time has come when we must post our pre test weblog. This unit like all the units we've went through has sure come and gone by fairly quickly. It seemed like we learned a lot of new things in this unit but clarified by Mr. K, he says that we are only utilizing old lessons to solve more complicated equations.

This unit is solving rational equations. I must admit that I had some misunderstandings in the beginning of this unit. I had problems with multiplying a set of number by one to convert them into numbers with common denominators. Of course I did the right thing to do and went to Mr. K with my concerns immediately and cleared up a tangled mess.
Another thing that I am having quite some trouble with is probably the latest thing we learned in the unit? (the stuff where we find missing values given distance, time or rate of travel etc). I guess that all we can do is practice, look over notes and hopefully overcome our obstacles.

With our lucky day off in the middle of the week, I do hope that you guys go through those practice quizzes in hopes of doing great of the unit test on Friday. That's all folks!

Rational Expressions Pre-Test Practice

Here are a number of quizzes you can work through to help get ready for the test on Thursday.

• Simplifying Rational Expressions (5 questions)


• Multiplying Rational Expressions (5 questions)


• Dividing Rational Expressions (5 questions)


• Rational Expressions with Like Denominators (5 questions)


• Rational Expressions with Unlike Denominators (5 questions)


• Mixed Expressions and Complex Fractions (5 questions)


• Solving Rational Equations (5 questions)

When you finish each quiz you can refresh the page to get another one. ;-)

Blog Before Test

A muddy point of mine was deciding when to cross multiply. Maybe, we could put a rule for when to cross multiplication. Just today, we when over when to use cross multiplication. ONLY use the cross multiplying rule when solve an equivalent fraction equation.

I thought the weekend homework, Exercise 52 was tough. I when to talk to Mr. K. After, a long while of conferencing, I learned when and how to cross multiply properly. After, the meeting I had a better feeling. I felt better, but still a little worried.

Today, Mr. K told my a funny story of how the "Pythagorean theorem." On exercise 52, question 12, it says "John is building a house 20-m by 10-m but he lost his carpenter square. How can he make sure his house found is at right angles without buying another square?" A carpenter square is a triangles that is 3 by 4 by 5. Which is 3² by 4² by 5². Which equals to 9 + 16 = 25. The conclusion is that home builder's use the "Pythagorean theorem" in real life.

Muddiest (Rational) Point

We've been studying rational expressions. Use the comments of this post to:

    » share your personal "Muddiest Point" about what we've studied

    » make suggestions about what kind of new information we've learned would be helpful to include in your math dictionaries

    » any other questions, concerns, complaints, confusions, uncertainties, anxieties or other inquiries you may have.

You can use your name or leave your comment anonymously, but, whatever you do, share your troubles here. Remember, you can help each other too! Leave tips and advice in the comments for your classmates. And don't forget, you can form an online study group and "meet" in the chatbox of our blog! Unlike Sysiphus, you're being set up to succeed! Take advantage of every opportunity you've got!

Cubeoban Sunday

The objective of Cubeoban is to push/pull all the blocks to their corresponding lights. Do this by clicking on the blocks and drag them in the direction you want to push them. Play it here.

Level 1 was so easy that even I could do it. Level 2 (the image), started my thinking.

(Thanks again to Think Again!)