This Blog exists for the collective benefit of all algebra students. While the posts are specific to Mr. Chamberlain's class, any and all "algebra-ticians" are welcome. The more specific your question (including your own attempts to answer it) the better.
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Monday, November 1, 2010
hw #3-3 Set Terminology
What better way to improve your vocabulary than through ALGEBRA??
Read the PurpleMmath link on MathChamber Unit 3 for section "3-5 Working with Sets"... I think you'll like it... let me know if it was helpful or if you have any questions. Enjoy your "vaca"... I'm going to the NJEA convention to learn about more stuff that's sure to make you miserable!! I get ALL the fun!!
When listing like "X is less than 2 but greater than -4 would you write it like this in set-builder notation? With multiple inequalities? X={X|X<2,X>-4} Or somehow differently?
I don't really understand Universal Sets.. How can a complement of a set be all of the elements IN the Universal set that are NOT IN the Universal Set? O.O CONFUSEEDD
A universal set is a full set. A full set, like beauty, can be in the eye of the beholder.
A universal (full) set of utensils could consist of a fork, knife and spoon. If you have a set consisting of a knife and fork, then a spoon would complement your set in order to make for a full universal set.
Alternatively, a universal (full) set of utensils might could consist of two forks (salad and dinner), two knives (butter and steak) and two spoons (tea and soup). If you have a set consisting of a dinner fork, steak knife and both spoons, then a set consisting of a salad fork and butter knife would complement your set in order to make for a full universal set.
Read the text book and the purplemath and see if you still have questions.
Read the PurpleMmath link on MathChamber Unit 3 for section "3-5 Working with Sets"... I think you'll like it... let me know if it was helpful or if you have any questions. Enjoy your "vaca"... I'm going to the NJEA convention to learn about more stuff that's sure to make you miserable!! I get ALL the fun!!
ReplyDeleteAre we going to take a notebook test this marking period?
ReplyDeleteWhen listing like "X is less than 2 but greater than -4 would you write it like this in set-builder notation? With multiple inequalities?
ReplyDeleteX={X|X<2,X>-4}
Or somehow differently?
I don't really understand Universal Sets.. How can a complement of a set be all of the elements IN the Universal set that are NOT IN the Universal Set? O.O CONFUSEEDD
ReplyDeleteLotta, you can use multiple inequalities connected by an AND like this:
ReplyDelete{x|x<2 AND x>-4}
OR you can summarize like this:
{x| -4 < x < 2 }
... you don't need to prefix with the 'x='
Dear CONFUSED!
ReplyDeletePlease read the purplemath on mathchamber... I think that will clear things up for you... let me know... thanks!
I have two confusions about the math homework.
ReplyDeleteFirst, what is the compliment of a set?
Second, what does C mean?
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(I would have asked earlier but I was away for the past few days and didn't have internet access.)
A universal set is a full set. A full set, like beauty, can be in the eye of the beholder.
ReplyDeleteA universal (full) set of utensils could consist of a fork, knife and spoon. If you have a set consisting of a knife and fork, then a spoon would complement your set in order to make for a full universal set.
Alternatively, a universal (full) set of utensils might could consist of two forks (salad and dinner), two knives (butter and steak) and two spoons (tea and soup). If you have a set consisting of a dinner fork, steak knife and both spoons, then a set consisting of a salad fork and butter knife would complement your set in order to make for a full universal set.
Read the text book and the purplemath and see if you still have questions.
How would I make a set builder notation to represent 36?
ReplyDeleteI meant question 36
ReplyDeleteYou can do it one of two ways:
ReplyDeleteNumerical Form:
(s|s=1,2,3,4,6,12}
or Narrative/Logical Form:
{s|s is a factor of 12}
This was a tough one... the book didn't really cover this point.