Tuesday, September 29, 2009
Monday, September 28, 2009
Friday, September 25, 2009
Thursday, September 24, 2009
Wednesday, September 23, 2009
Tuesday, September 22, 2009
Monday, September 21, 2009
Friday, September 18, 2009
sept. 17
2x+4y=8
3x+y=-13
first. find the 1 coeficent. thats in the 2nd equation. then i subtracted 3x. then i substituted (-13-3x) for y in the 1st equation. i then had 2x+4(-13-3x)=8. i evaluated that to 2x-52-12x=8. after collectiong like terms, getting rid of -52, i had -10x/-10 = 60/10. therefor, x= -6. after i figured out x, i substiued that into the first equations and then it was just algebra to find out what y was. y= 5
3x+y=-13
first. find the 1 coeficent. thats in the 2nd equation. then i subtracted 3x. then i substituted (-13-3x) for y in the 1st equation. i then had 2x+4(-13-3x)=8. i evaluated that to 2x-52-12x=8. after collectiong like terms, getting rid of -52, i had -10x/-10 = 60/10. therefor, x= -6. after i figured out x, i substiued that into the first equations and then it was just algebra to find out what y was. y= 5
Wednesday, September 16, 2009
Monday, September 14, 2009
Friday, September 11, 2009
Sept 11
I learned that a system of linear equations is 2 or more linear equations at the same time. and I learned that y = x.
Goals for the year.
1. Get all objects assigned to me.
2. Learn something new.
3. Do well on the exam.
2. Learn something new.
3. Do well on the exam.
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