Question

Name the properties.
2) –x – y + x
3) –x + x – y
4) 0 – y
5) -y

Answer 1

so to go from line 1 to 2, which property lets you move terms around?

Answer 2

Commutative property of addition

Answer 3

yea, now for line 2to 3, which property tells you what x+(-x) is?

Answer 4

Additive inverse???

Answer 5

yup, and finally for 3 to 4, which tells you what happens when you have 0-y

Answer 6

hint: 0-y is the same as 0+(-y)

Answer 7

additive inverse again

Answer 8

so what is #4 then?

Answer 9

no, not additive inverse

Answer 10

additive inverse means 1-1=0 yea? you need a different one

Answer 11

It's neither distributive or indentity addition property

Answer 12

hmmmmm

Answer 13

wait, what was that second one you just said? What is that property?

Answer 14

Additive Identity Property example = a + 0 = a

Answer 15

*COUGH* *COUGH*

Answer 16

.....

Answer 17

"yup, and finally for 3 to 4, which tells you what happens when"
"hint: 0-y is the same as 0+(-y)"

Answer 18

when you have 0-y*

Answer 19

these are the choices they gave me

Commutative Property of Addition

Identity Property of Addition

Distributive Property

Additive Inverse Property

Answer 20

for each one

Answer 21

yea, and why are you bothering to tell me?

Answer 22

(the answer is listed, but it is also in this thread prior...)

Answer 23

You even defined it for me

Answer 24

just leting you know. O-O I'm really confused with #3. I know I'm an idiot. Plz forgive me.

Answer 25

fibonacci is done with me isn't he. *sigh*

Answer 26

now I'm confused. the "answers" here are the justifications for how you go between each step

Answer 27

there is no #3

Answer 28

ok I'll send you a screenshot

Answer 29

there is how you go from line 1 to 2, how you go from line 2 to 3 and how you go from line 3 to 4. All they want you to do is tell them which property was invoked to simplify

Answer 30

I don't need a screen shot

Answer 31

I dont need you being rude to me now ok it's 11 where I live

Answer 32

I'm not being rude, I'm stating that you already told me the answers for what you have written above as your query

Answer 33

(although in switching to here you missed going from their given to your number 1.

Answer 34

Ok here's what I'm getting so far.

1. Given
2. Commutative Property of Addition
3. Additive Inverse
4. ?
5. ?

Answer 35

Take a look at the question you posted here, and compare the steps. all it wants is how you simplified(what rule you used to go between steps)

Answer 36

(although I must say that two column proofs are the most idiotic teaching tool ever. They actually make it harder to prove things once you hit a higher level. No mathematician actually uses them. They just write a paragraph)

Answer 37

I already know that All I need help with right now is what are the properties for 4 and 5.

Answer 38

your 2 and 3 are incorrect

Answer 39

... BUT YOU SAID THAT IT WAS CORRECT BEFORE!!!!!!!

Answer 40

so like I said, when you justify, it means you are saying how you went between steps. what property you used. Did you use the additive inverse to go between line 1, your given, and line 2?

Answer 41

You copied the problem wrong.

Answer 42

You know what I'm gonna repost this....