Question

Need help with these 2 problemsss

Which of the following is a subset of set A?
A: {children between the ages of 3 and 7}

{children over 7}

{children 3 years old}

{children of all ages}

{children under 3}



Which of the following does not represent the set of integers from 1 to 9?

{integers from 1 to 9}

{1, 2, 3, 4, 5, 6, 7, 8, 9}

{1, 2, 3, …, 7, 8, 9}

{integers greater than 1}

Answer 1

Are children over 7 part of the set {children between the ages of 3 and 7} ???

Answer 2

yes

Answer 3

so a child that is 8 yrs old is part of the set {children between the ages of 3 and 7} ???

Answer 4

im confused

Answer 5

is a child that is 8 yrs old between 3 and 7 ?

Answer 6

no

Answer 7

so any child over 7 is NOT part of the set {children between the ages of 3 and 7}

Answer 8

Okay so it would be children 3 years old?

Answer 9

do you see how I'm getting this?

Answer 10

not really

Answer 11

you got it

Answer 12

basically, think of the set as a collection of items or people

Answer 13

a subset is a smaller collection of items

everything in this subset must belong to the original set

Answer 14

Ohhh Okayyy (:

Answer 15

in this case, all 3 yr olds are a collection of people who belong to a much bigger collection of people (namely the collection of 3-7 yr olds)

Answer 16

so {3 yr olds} is a subset of {children between the ages of 3 and 7}

Answer 17

okay thank you so much

Answer 18

yw