Please Help. Will fan and medal!!
Problem:
What are all the subsets of the set? {-8, 4}
A - do not choose
B - {-8}, {4}, {-8, 4} - I choose this and got it wrong
C - do not choose
D - 0/, {-8}, {4}, {-8, 4} - Correct answer
Why is D the correct answer? What does a 0 with a / through it mean? Thanks!

Question

Please Help.  Will fan and medal!!
Problem:
What are all the subsets of the set?  {-8, 4}
A - do not choose
B - {-8}, {4}, {-8, 4} - I choose this and got it wrong
C - do not choose
D - 0/, {-8}, {4}, {-8, 4} - Correct answer
Why is D the correct answer?  What does a 0 with a / through it mean?  Thanks!

loser66 · Answer

$\emptyset$ is a subset of any set.

shiree19 · Answer

So whenever I have a subset problem I have to include $$\emptyset $$

loser66 · Answer

empty set is not 0 , think of this: In school, you have classes, and classrooms. Some classroom has students, some are not, but it is a classroom still.

loser66 · Answer

ye,

shiree19 · Answer

Okay.  I think I understand it.  Thanks!