Sunday, October 20, 2013
BOB
Bob 5
Bob
B.O.B
B.O.B
Bob
I think this unit went smoothly it was refreshing my memory on how to do this unit and teaching me some more stuff. I like my groups I have been going to and I believe I did good on my test because I use able to understand the unit when you were teaching us and it was pretty fun. But over all I liked this unit.
Bob
B.O.B. Progress and Reflection
BOB-reflection
B.O.B. #5
-Dakota
Bob it gets better
Bob
B.O.B.
B.O.B.
b.o.b.
B.O.B.-Progress
B.O.B.
B.O.B: reflection ツ
During this week in PreCalc Functions my class started a new unit by the name of Polynomials. It sounds complicated and the word even looks complicated. Welp, at first it was for me honestly, untill Mr. Jackson gave me a better understanding of how to graph and write an equation for a Polynomial.
When looking at the graph and equation for a Polynomial you have to know all the possible characteristics of them and i didnt know that. I learned on friday why Jackon kept saying the terms bouce,straight,curve,even, and odd. So when we all got handed the paper called "Even or Odd" I asked him about how to write an equation by looking at the graph. When you look at a graph you always want to read it left to right. So if you have to arrows going up, you know the graph will be even. This means it has a even number of degrees and a positive "a" value. Then on the graph if a line goes straight through a number, it will be written like this in an eqution (x±#) if the line bounces off a number you know in the equation the x will be squared. And if you have a curve through a number you know it will be raised to the third power. If the even degree was negative, your 2 arrows would just be going down. Now if you look at a graph and the arrow starts up and ends down, its odd and its negative. This means theres an odd number of degrees and the "a" value is negative. So when you write the equation its just like using the the same stratigies for a even graph.
Anyways, on friday i finally learned how to write an equation and draw a graph for a polynomial thanks to Jackson. I feel more confident then i did like 4 days ago.
B.O.B Progress
b.o.b.
B.O.B- Reflection on Polynomials
BOB
B.O.B. #5
B.O.B. - Vance W.
B.O.B
-Hannah-R
BoB.
B.O.B.-hooray for polynomials.
This is one of my favorite units to do, second only to Logs. It's odd that I'm going to be looking forward to math class for the next week or two, because I rarely enjoy math. I was stressed out beyond belief last week, but I knew that if I made it to Sunday everything would be fine. And here I am, alive and all in one piece. Frankly I'm just excited to do long division of polynomials because that's fun. Actually it's probably the most fun thing we'll do this trimester. But yeah. This unit is going to rock.
Reflection on the week previous to the current week
BOB reflection
B.O.B.
BOB #4
B.O.B. Reflection
B.O.B.
So throughtout the last unit I missed quite a few days. But on the test day I felt ready to take the test. The reveiwband quadratics madness helped but I think what helped most was the fact that I had been doing the test corrections from the first test the day before. It helped me remember a lot of stuff I probably would have forgotten and gotten wrong. After taking the test there was still stuff I think I got wrong and one problem I just didn't know. But I did my best.
B.O.B
B.O.B- Reflection
Reflection
BOB
I think B.O.B.'s stressed
B.O.B. - Reflection
Last week we started a new chapter. We started with a polynomial challenge, where we first had to divide without a calculator, what was first a bit difficult, but when we remembered again how to do it, wasn't it very difficult anymore. Then was a exercise as a review of our first unit (domain), and then we had to factor.
New:
We started something completely new for me with polynomials. But what helped me a lot to get this completely new thing were the notes on polynomials you put for us on one page.
After we had to use, what we learned on the notes and graphed functions with polynomials. With the four graphs we have to look at. First I was very confused, how to do this, but then Emilie could help me a lot and now I understand it better: What Emilie learned me, might also help some of you;)
- When it curves through the axis = 1 degree
- When it just touches the axis and goes back in the same direction, as it came from = 2 degrees
- When it goes along the axis for a while and then curve through = 3 degrees
What I realized that helps me a lot, when I have to make the graph and then find the intervals: I first draw the graph and then label all the positive sections of the graph with one color and all the negative sections of the graph with one color. Then, when I have to make the interval notation, I just need to describe each individual colored part.
B.O.B.
B.O.B.-Class reflection
Saturday, October 19, 2013
bob
So far in this week more specifically this unit, learning and using the material is really easy. graphing is kinda helpful though when trying to envision the domain of the functions we've been dealing with so far. other than that i don't really know what else to talk about.
BOB: Class Reflection
1. Find the degree by adding all of the x's together from the equation. Say you have y= x(x+3)^2, then you would have an odd degree of 3.
2. Now to find out if the graph will be negative or positive, you must also look at the equation. If you have an equation that is positive (y= (3+x)(4+x)), then your graph is positive. If you have an equation that is negative (y= -(3+x)(4+x)), then your graph is negative.
3. Using that information you can find out if your graph is positive/negative and odd/even. Then, I always remember that graphs that are positive always end positive, and graphs that are negative always end negatively. I also remember this saying, "Your even if you like McDonald's and Wendy's, and your odd if you don't." Even degrees lead to "M" and "W" shaped graph lines.
4. By the way, don't totally forget about the individual powers of each of the x intercepts. You need to know each power of each intercept to know how to draw the line. If an intercept is to the power of 1, then the line goes straight through the intercept. If its to the power of an even number, then you "bounce" the line on the intercept. And if you have a power that is an odd number that is greater than 1, then you curve the line through the intercept.
5. Now you are ready to find the degree, find out if the graph is positive/negative and odd/even, and how to draw a graph of any polynomial!
B.O.B. Learned this week
I'm so glad to finally learn why a graph curves through a x intercept, because the factor is to an odd power. And I also never knew that the graph can also bounce off a x interecpt if it is to an even power. This unit looks like it will be fun.
B.O.B. Week 5
B.O.B
Bob
Up coming week
I feel this unit will be more understanding for me. So far I understand how to find the degree amd what the graph should look like. I also can look at the graph and find the equation
