(Don’t forget to study for tomorrow’s quiz!)
Solve each equation or system.
-2(4 – 5x) = 12
2x – 4y = -24
3x – 8y = -50
2x – 4y = -52
5x – 5y = -85
x = -3y + 19
4x – 5y = -9
Archive for April, 2008
Homework 4/24
Posted in homework on April 24, 2008 | Leave a Comment »
Homework 4/23
Posted in homework on April 23, 2008 | 2 Comments »
Here’s tonight’s homework, in case you can’t find your copy or didn’t pick one up:
Solve each system, using any algebraic method (substitution or elimination).
4x + 3y = 26
16x – 2y = 4
-x + y = -10
-2x + y = -10
-2y + 5x = 15
y = x – 3
4/22 Discussion 3: ClassZone
Posted in Uncategorized on April 22, 2008 | 8 Comments »
What did you find on the classzone website? (ClassZone.com) What part do you think is the most useful?
4/22 Discussion: Elimination
Posted in Uncategorized on April 22, 2008 | 14 Comments »
What is the hardest part about elimination? You can tell me what kind of problem is hardest or what step you usually get stuck on.
4/22 Discussion 1: Substitution
Posted in Uncategorized on April 22, 2008 | 13 Comments »
What is the hardest part about substitution? You can tell me what kind of problem is hardest or which step you usually get stuck on.
Instead of Error Analysis…
Posted in extra credit on April 21, 2008 | 6 Comments »
Extra credit!
I know you guys don’t like error analysis. I even know why you don’t like it. But I don’t know what to do instead.
So… here’s your chance to tell me what we should do instead, and get extra credit for it!
What should we do instead of error analysis that would help you learn from [...]
Homework 4/21
Posted in homework on April 21, 2008 | 1 Comment »
Tonight’s homework is to complete TWO ERROR ANALYSIS SHEETS based on the last two quizzes. If you need another copy of the sheet, email me and I will email you the file.
Reasons you need to do the error analysis:
It counts for today’s classwork grade.
It counts for tonight’s homework grade.
You can get up to 2 [...]
Homework 4/16
Posted in homework on April 16, 2008 | 1 Comment »
Don’t forget to scroll down to see the new extra credit opportunity (Choosing Substitution or Elimination)!
Tonight’s homework was from 7.4 Practice B, #13-15 and #20. In case you forgot the paper, here are the problems:
#13: Solve using elimination.
4x – 3y = 16
16x + 10y = 240
#14: Solve using elimination.
20x + 10y = 100
-5x + 4y [...]
Choosing Substitution or Elimination
Posted in extra credit on April 15, 2008 | 8 Comments »
Extra credit opportunity!!
Here’s the question I’ve been asking all week:
Do you prefer substitution or elimination? Why?
For each problem below, tell whether you would use substitution or elimination, and why. (YOU DO NOT HAVE TO SOLVE THEM!)
y = 3x – 10
2x + 3y = 7
5x + 2y = 9
7x – 2y = 13
y = [...]
Homework 4/15
Posted in homework on April 15, 2008 | 4 Comments »
Tonight’s homework was from the 7.3 Practice A worksheet (that we used for classwork), #17 and 18. In case you can’t find that paper, here are the questions:
#17: -6x – 5y = -43
7x + 15y = 41
#18: 8x – 6y = 8
4x + 5y = 36
Leave a comment if you have a [...]
