Friday, January 23, 2009
Thursday, January 22, 2009
Wednesday, January 21, 2009
Tuesday, January 20, 2009
Monday, January 19, 2009
And our assignment is ex. 58..
the next scribe will be AKEEM??
Sunday, January 18, 2009
I'm not sure if Ana will be able to blog so in case she's cant, I will do it for the Friday's class.
On Friday, we only got through three slides. But aside from that, the class ended up pretty better than the other dry days; like what Captain Oh Captain had said.
In the beginning of the class, we had a hard time before getting to actual math because of the Blogging thing. Apparently, no one has blogged for the last few weeks meaning us students are actually losing easy marks just by not blogging.
Anyway, we also talked about groups. when Mr. K puts us into groups, he's telling us to work with each member of the group on solving the questions/equations. Or in other cases, sharing how we got to our answer because we cant learn just by watching someone else do it. Mr. K used basketball for example. If we just watched a basketball player shooting hoops, would we actually be able to do it? Of course not. Unless you do have the ability to have that kind of power. But anyway, the point is that we actually have to try it ourselves to get better at it. Mr. K also used a video game example. Most of us had played video games right? Well why don't we treat pre-cal and any other subject like a video game? When we play for the first time, do we actually get to 1st place? No. But it's not like we gave up that easily; WE KEPT TRYING.
Well I'll be talking about the work now. Today was pretty much just a review. As you can see on the slide below, there was this question that said " What is the domain and range of each relation?". For a) D : [ 0, 6] , R : [ 0, 6] The 6 was figured out because the center of the circle was 3. So it's like giving us a radius right there. 3 multiplied by 2 is equal to 6. And the 0 was figured out because it touched the x and y axis. Or well, from my point of view, I think that's how it worked. for b) , c) , and d) are still a little scrambled in my head so I apologize for not being able to explain it.
By the end of the class, we learned about Intercepts. Like when we want to find a y-intercept, we have to LET X = 0. And vice versa for the x-intercept.
HOMEWORK : EXERCISE 57.
NEXT SCRIBE : ANA??
PS: I hope I dont get in trouble by scribing -__-'
Friday, January 16, 2009
Thursday, January 15, 2009
Wednesday, January 14, 2009
Tuesday, January 13, 2009
Monday, January 12, 2009
Muddiest point :
- dividing rational expressions
-word problems dealing with making an eqautions.
Thursday, January 8, 2009
This unit went really slow and dry. Before the break I was doing fine but after the break I basically forgot all the rules for solving and simplifying.
Muddiest Points are:
*Word Problems - Hard to analyze and use data in an equation
*Factoring - Factoring tougher trinomials.
My muddiest points are:
- factoring trinomials that involve 2 variables
- dividing rational expressions
* more practice, a big review, and everything else we need to know before the exam.
Wednesday, January 7, 2009
Saturday, January 3, 2009
Hello every one and Happy New Year!
I would like to say sorry for my late post. I will try my best to review what i have learned in class and what i knew about Ration Exp & Eqns.
*We always have to know that restriction are found in the denominator of a rational exp & eqns.
*In some question we cannot find our restriction by not factoring it first.
*After finding the restriction of a question, our answer of that question will not be same or related to the restriction of that question (You may have to try again or the question is wrong).
Here are some examples:
This is what i would do first to find the restriction.
As i see this question one of the thing i would look at is that can i factor it first, my answer would be no.Then the second thing i would look is the denominator where we usually find our restrictions. I would take the denominator and make it as equal to zero.
x=0 Zero is the restriction
Click to practice
1. Determine the LCD(Least common Denominator).
2. Rewrite each fraction as an equivalent fraction with the LCD.
3. Add or subtract the numerators while maintaining the LCD.
4. When possible, factor the remaining numerator and simplify the fraction.
I don't have time to explain subtraction of rational expression
but the difference is the Negative sign just be carefull with the sign.
Click to practice!
Next Scribe Post will be shawn !!!!!!!!
for any question or mistakes please make a comment!!
My Muddiest Point!!!
My muddiest point in this unit is the
word problem i don't seem to understand,
but i'm okay with the rational exp & eqns