katlin95
what is the length of segment AD on the number line below, give me a min to draw it:)



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katlin95
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dw:1349930484427:dw

katlin95
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dw:1349930636833:dw

ganeshie8
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A is at 4
D is at 1
right ?

katlin95
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A is at 4, and D is at 2

katlin95
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nevermind you are correct

ganeshie8
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ok thanks :)

katlin95
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so would you happen to know the answer, wouldnt the answer be 5?

ganeshie8
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dw:1349931000297:dw

ganeshie8
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to find the distance AD, we subtract

ganeshie8
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we subtract 4 from 1

ganeshie8
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1  4
1 + 4
3

katlin95
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SO WOULDNT IT BE 3?

ganeshie8
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distance is never negative

katlin95
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oh wait we add plus minus

ganeshie8
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even if we get 3, we will take its absolute value 3 and always say that AD = +3

ganeshie8
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negative distance never exists in math

katlin95
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oh okay, i get it lol thankyou!

ganeshie8
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:)