Today we basically went over our homework and went over problem 27. We found out if there is two of the same variables in a problem the obvious answer are always 0. Also today we went over Domain and Range and did problem PG 32.
The Scribe for Monday's class was Patrick
Saturday, January 26, 2008
Friday, January 25, 2008
Scribe Post 1/24/07- MMiller
We solved problems that showed us how to change equations from the standard form to the vertex form, and also we learned how to find the vertex of an equation without drawling the graph. Lastly we leanred how to figure out the graph form of a parabola from the standard form
We learned that writing in the Standard form is written as y=x^2+bx+c.
The forumla for Graphing or Vertex form is a(x-h)^2+k
CW- PG22-26
HW: Pg-27-31
The scribe for Friday's class is Junaid.
We learned that writing in the Standard form is written as y=x^2+bx+c.
The forumla for Graphing or Vertex form is a(x-h)^2+k
CW- PG22-26
HW: Pg-27-31
The scribe for Friday's class is Junaid.
Thursday, January 24, 2008
Wednesday, January 23, 2008
Michael Doyle
Simplifying Expressions
BB-35
A) (2m3)(4m2)
B) 6y5/3y2
C) -4y2/6y7
D) (-2x2)3
A) When simplifying expression A, 2m3 and 4m2 have to be multiplied. In order to do this, the first thing to do is to check for like terms. m and m are like terms so they can be multiplied together resulting in 2m*4m=8m. Though, the original terms in this expression both have exponents. The law for multiplying with exponents is that whatever power each term is to, the exponential value is added together. So in this expression it would be m3+m2=m5. So when simplified, this expression is 8m5. Parenthesis is not needed anymore after multiplication.
B) When simplifying expression B, 6y5 is being divided by 3y2. Dividing terms with exponents is similar to multiplying, just the other way around. Rather than adding the power the each term is to, they are subtracted. Normal division is held for the rest of the terms. So, 6y/3y=2y. And since the exponents are being subtracted and not added, so it is y5-y2=y3. So when simplified, this expression is 2y3.
C) Expression C is very much similar to expression B, just with a negative term. The same rules apply as they always do, -4y/6y=-0.667y and for the exponents –y2-y7=-y-5. So the full expression simplified is -0.667-5.
D) For expression D, a term with and exponent is being put to the 3rd power. When this occurs, the exponential factors are multiplied. So the term -2x remains the same, but the 2 in -2x2 is multiplied by 3. Which then is seen as 2*3=6. Thus, the simplified expression is -2x6. Parenthesis is not needed anymore after multiplication.
BB-35
A) (2m3)(4m2)
B) 6y5/3y2
C) -4y2/6y7
D) (-2x2)3
A) When simplifying expression A, 2m3 and 4m2 have to be multiplied. In order to do this, the first thing to do is to check for like terms. m and m are like terms so they can be multiplied together resulting in 2m*4m=8m. Though, the original terms in this expression both have exponents. The law for multiplying with exponents is that whatever power each term is to, the exponential value is added together. So in this expression it would be m3+m2=m5. So when simplified, this expression is 8m5. Parenthesis is not needed anymore after multiplication.
B) When simplifying expression B, 6y5 is being divided by 3y2. Dividing terms with exponents is similar to multiplying, just the other way around. Rather than adding the power the each term is to, they are subtracted. Normal division is held for the rest of the terms. So, 6y/3y=2y. And since the exponents are being subtracted and not added, so it is y5-y2=y3. So when simplified, this expression is 2y3.
C) Expression C is very much similar to expression B, just with a negative term. The same rules apply as they always do, -4y/6y=-0.667y and for the exponents –y2-y7=-y-5. So the full expression simplified is -0.667-5.
D) For expression D, a term with and exponent is being put to the 3rd power. When this occurs, the exponential factors are multiplied. So the term -2x remains the same, but the 2 in -2x2 is multiplied by 3. Which then is seen as 2*3=6. Thus, the simplified expression is -2x6. Parenthesis is not needed anymore after multiplication.
Tuesday, January 22, 2008
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