4/29/09 Block 4 April 30, 2009

Today in Ms. Hawn’s class, we first got back our absolute value quizzes that we took the other days. If we got a high enough grade, we could check absolute value off of out check list of things we have to know. Next, we did some absolute value problems in the Algebra 2 EOC Review workbook. Ms. Hawn went over all the problems on the overhead and we handed the work in for a classwork grade. Finally, we took notes on circles. The equation of a circle is (x-h)^2 + (y-k)^2 = r^2. (h,k) is the center and r is the radius. To find the center, use the midpoint formula to find the middle of the diameter. To find the radius, you do the length of diameter /2. To find the length of the diameter, you do the square root of (x-x)^2 + (y-y)^2. Once you find the center and the radius, plug the answers into the equation of a circle. Our homework was on circles on pg. 54 in the workbook #1-9.

Christina H.

Today’s Class Activities April 28, 2009

1. Use the following link to access the website: http://www.sascurriculumpathways.com/ProductEntrance/Launch/launch.jsp?unit=1245-3
2. Student Username: mustangs
3. Chose to view tools by index topic
4. Choose either:  (Radical Expressions > Simplifier: Radicals) or (Polynomial Expressions > Simplifier: Polynomials) 
5. Complete at least 15 problems using the applet.
6. If you finish early, read the following webpage: http://coolmath.com/algebra/Algebra2/08Conics/01_circles-intro.htm

4/21/09 April 27, 2009

Today in Mrs. Hawn’s class we first had a homework check of the worksheet from the night before that was on solving rational equations! Then, we went into finishing our puzzle also from the day before. She gave us paper to complete it on and we had to cut the pieces into pairs and connect them like dominos! You could put them into any formation that you want on the paper. Then, we did a review. There were different stations set up or classes as you called them to practice for the quiz tomorrow! There was no homework except finish the puzzle!

Kasie Hanson

4/14/09 – 2nd Block April 18, 2009

Today in la clase de Algebra 2 we reviewed over Multiplying & Dividing Rationals Expressions. An example of a problem that was in our notes today.

x^2 + 10x + 25/x^2 – 9 * x^2 – 3x/x + 5

First – We solve ANY TYPE of Rational Problem we FACTOR, CANCEL, SIMPLIFY. Second – We FACTOR x^2 + 10x +25, it is now (x+5) (x+5). Third – We FACTOR x^2 – 9, it is now (x + 3) (x + 3). Fourth – We FACTOR  x^2 – 3x, it is now x(x – 3). Fifth - We CANCEL like terms, Cancel out the x+5 on the top left fraction and the bottom right fraction. Then cancel the x – 3 from the bottom left fraction and the top right fraction. Sixth – We SIMPLIFY, which gives us are answer of (x + 5)x/(x + 3).  – JOHN JOSEPH

Logarithmic and Exponetials April 6, 2009

LOG b ^n= x        ……………………….. b^x = n

The base “b” is always on the bottom, The “n” is the answer, The “x” comes after the “b” (base)

To convert to exponential                               

• LOG2  16= 4 –> 2^4=16
• LOG5  25=2 –>5
• LOG2  1/4=-2 –> 2^-2 = 1/4

To Convert to logarithmic

•   8 = 2^3 –> LOG2  8=3
• 27= 3^3 –> LOG3  22 =3

 

 

4/01/09 – 2nd Block April 2, 2009

Today in class we reviewed over Rational Functions. We took notes on how to operate Rational Functions and a 3 Question Quiz about it. An example of what a Rational Function and how to answer it is.

(2m^3n^2)/-18m^5n^4 =

1. Break down exponents…. 2^1*3m^3*3n^2*3/-18m^5n^4

2. Simplify…. 8m^9n^6/-18m^5n^4

3 . Divide by 2 to get it to its simplified version…. 4m^4n^2/-9

JOHN JOSEPH

Simplifying Rational Expressions April 1, 2009

Yesterday we simplified rationals. The steps to doing this is..

1. Put them in descending order

2. Put them into factor form

3.Reduce common terms

& last you have you simplified form

* If the term is negative…FACTOR OUT A -1

 

This is really easy in my opinion. The only things I have trouble remembering is to factor out a  -1

 –Maya