10/23/07   blue=========
Solve a system by linear combination.

2y+x=6
4x -2y=12

2x-y= -3
2x-y= -5


2x-y=-3
8x-4y=-12















10/23/2007 ============gray
1. Get out yesterday's work & homework & 
	put it on desk.

2.  DO NOW:
Simplify:

[-2+3[4(2-3)-5(4)^0]]-3











PG 17; write the expression, not the equation
You know x+y=17 that means that
                 -x       -x
                 ------------
                      y=17 -x    
the answer is 17-x, an expression   
pg 18,#53:
        (fruit salad)
     1(apples)+2(peaches)+1(banana)                  1(29+p)+2(p)+1(13+p)
       29+p + 2p + 13 + p
     4p  +42




10/23/2007 ============yellow
1. Get out yesterday's work & put it on desk.
2.  DO NOW:
Simplify:
[-2+3[4(2-3)-5(4)^0]]-3
PG 17; write the expression, not the equation
You know x+y=17 that means that
                 -x       -x
                 ------------
                      y=17 -x    
the answer is 17-x, an expression   
pg 18,#53:
        (fruit salad)
     1(apples)+2(peaches)+1(banana)                  1(29+p)+2(p)+1(13+p)
       29+p + 2p + 13 + p
     4p  +42
1:48 PM 10/23/2007 === green====
standard deviation - standard average spread
stanine = standard nine intervals

1. Draw a normal, bell, curve.
2. Label the number or symbol in the center of the bottom number line.

given: 2, 4, 6, 8, 20
3. compute mean
4. compute mode
5. compute median
every villain is lemons.










10/23/2007   PINK=========
stanine
standard deviation
normal curve with stanines
normal curve with stanines\fs

average -  a one number description of a set of numbers
  *mean, x bar -    add up the numbers and divide by how many numbers there are
       (5+5+10+0+5)/5 = 5  
	mean is 5
   *median- the middle number when numbers are listed from lowest to highest
   	5, 5 ,10, 0, 5 ---> 0,5,5,5,10
 	median is 5
   *mode- the number that has the highest frequency
uses 
  on a report card
  employer
  politician
example: 5, 5 ,10, 0, 5
range - difference between highest and lowest
standard deviation -  the standard average spread

=================
10/22/07	BLUE===========

intersecting  independent
parallel inconsistent
coincident  dependent

y=mx+b
Ax+By=C
the slope is
not A, not C, not B, not A/B, is -A/B 
Solve system mentally.
1. slopes are different therefore 1 solution
x-2y= -2
-3x-6y=-6
2.  same slope, different intercepts, therefore parallel and NO SOLUTION
y=-2x+4
y=-2x+5
3.
5x+5y=10
10x+10y=12
4.
y=4x-1
8y=8x+8

HW: pg 128-129: orals,1-31 odd



10/22/07  GRAY ==========
MONDAY:	pg 16: 1-54 odd, finish LITE
TUESDAY: pg 55 orals, 1-43 odd, pg 57/1-14 odd
WEDNESDAY: pg 55/1-43 even, 57/1-14 evens
THURSDAY:  quiz & other QB


PUT your name in ink on each sheet.


exp3to5
1235...

x+1
-3x
5x
7x-3
  







  the value of some dimes decreased by twice as 
          many nickels              
five less than triple a number  
5 decreased by tripple a number
         
many nickels 




10/22/07  YELLOW ==========
MONDAY:	pg 16: 1-54 odd, finifh LITE
TUESDAY: pg 55 orals, 1-43 odd, 57/1-14 odd
WEDNESDAY: pg 55/1-43 even, 57/1-14 evens
THURSDAY:  quiz & other QB

the value of some dimes decreased by twice as 
                        10x - 2x(5)
                         10x - 10x = 0

five less than triple a number  
3x-5
5 decreased by tripple a number
5 - 3x         
many nickels 





10/22/07	RED===========
Solve system mentally.
1.
x-2y= -2
-3x-6y=-6
2.
y=-2x+4
y=-2x+5
3.
5x+5y=10
10x+10y=12
4.
y=4x-1
8y=8x+8

HW: pg 128-129: orals,1-31 odd



10/22/2007   PINK=========
average -  a one number description of a set of numbers
  *mean, x bar -    add up the numbers and divide by how many numbers there are
       (5+5+10+0+5)/5 = 5  
	mean is 5
   *median- the middle number when numbers are listed from lowest to highest
   	5, 5 ,10, 0, 5 ---> 0,5,5,5,10
 	median is 5
   *mode- the number that has the highest frequency
uses 
  on a report card
  employer
  politician
example: 5, 5 ,10, 0, 5
range - difference between highest and lowest
standard deviation -  the standard average spread