Question

Create a set of numbers and call the set N. Describe a subset of N and explain why it is a subset of N.

Answer 1

First part of the question is quite flexible...
so go ahead, make up your own set of numbers...

Answer 2

2,5,6,7,4,5,3

Answer 3

You can't have 5 twice...

Answer 4

Ok, 2,5,6,7,4,3

Answer 5

Now, make a new set which is a subset of this one....

Answer 6

Sorry, but I dont quite understand what a subset is?

Answer 7

Oh, I see :)
A subset is of a set that is completely contained withing that set.

For instance, considering the set {A,B,C,D}
the set {A,C} is a subset of that set ^ because it is completely contained.

Understand?

Answer 8

within*

Answer 9

Oh ok! So a subset would be 5,7,4?

Answer 10

Yes, that is one such subset :)
Remember to enclose the sets with {}

Answer 11

So your set
N = {2,5,6,7,4,3}

And you have the set {5,7,4} which you now know to be a subset of N.

Answer 12

Now, the neatest way to explain why this set is a subset of N is...
the fact that every element of the set {5,7,4} is also an element of N.

Therefore, {5,7,4} is a subset of N

^_^

Answer 13

Oh my gosh I have been trying to get this for like 45 min! You explained it and now I know how to do it! HUGE THANKS!

Answer 14

No problem :)

Just remember this, it should stick to your head...
A set S is a subset of a set T if
EVERY ELEMENT OF S is ALSO an element of T :)

Answer 15

haha thanks!