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gypsi
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Can anyone explain absolute values to me. The definition my teacher gave was a bit confusing x=x if x is greater than or equal to and x= x if x is less than zero. I thought absolute value was just the distance x was from zero so it couldn't end up negative.
 2 years ago
 2 years ago
gypsi Group Title
Can anyone explain absolute values to me. The definition my teacher gave was a bit confusing x=x if x is greater than or equal to and x= x if x is less than zero. I thought absolute value was just the distance x was from zero so it couldn't end up negative.
 2 years ago
 2 years ago

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Akshay_Budhkar Group TitleBest ResponseYou've already chosen the best response.1
ok i will do it
 2 years ago

Akshay_Budhkar Group TitleBest ResponseYou've already chosen the best response.1
x is also known as absolute value of x or modulus x
 2 years ago

Akshay_Budhkar Group TitleBest ResponseYou've already chosen the best response.1
Now modulus x is a function that is always positive, that is it is always greater than zero.. \[\left x \right > 0\]
 2 years ago

Akshay_Budhkar Group TitleBest ResponseYou've already chosen the best response.1
so for a positive function the function doesnt change. Let us take an example.. Say x=5 so 5 = 5
 2 years ago

Akshay_Budhkar Group TitleBest ResponseYou've already chosen the best response.1
Now for a negative function, the function just changes the sign, that is negative sign becomes positive
 2 years ago

Akshay_Budhkar Group TitleBest ResponseYou've already chosen the best response.1
For eg. we have x= 5 5 = 5
 2 years ago

Akshay_Budhkar Group TitleBest ResponseYou've already chosen the best response.1
Now if you see the graph of x looks likedw:1326414074983:dw
 2 years ago

Akshay_Budhkar Group TitleBest ResponseYou've already chosen the best response.1
for modulus x the function looks like dw:1326414124726:dw
 2 years ago

Akshay_Budhkar Group TitleBest ResponseYou've already chosen the best response.1
As it is always positive
 2 years ago

Akshay_Budhkar Group TitleBest ResponseYou've already chosen the best response.1
Does this help?
 2 years ago

cazil Group TitleBest ResponseYou've already chosen the best response.3
I would like to add that the statement x = x when x < 0 means that for example: Lets say x = 2 so it's less than zero. 2 = (2) Absolute value of 2 is the opposite of 2 which is 2
 2 years ago

Akshay_Budhkar Group TitleBest ResponseYou've already chosen the best response.1
We have given the user a complete research on modulus... Hope it helps :)
 2 years ago

cazil Group TitleBest ResponseYou've already chosen the best response.3
I enjoyed your explanation =) I've seen the confusion with the x = x before (Which should be read as absolute value of x is the opposite of x)
 2 years ago

cazil Group TitleBest ResponseYou've already chosen the best response.3
When x is less than zero
 2 years ago

gypsi Group TitleBest ResponseYou've already chosen the best response.0
negatives always make my brain go twisty...but thank you it did help clear up some confusion.
 2 years ago

Akshay_Budhkar Group TitleBest ResponseYou've already chosen the best response.1
Yea many people find it confusing, the best way to tackle it is an example :D This method always works :)
 2 years ago

Akshay_Budhkar Group TitleBest ResponseYou've already chosen the best response.1
If you need you can clear ALL your confusion
 2 years ago

Akshay_Budhkar Group TitleBest ResponseYou've already chosen the best response.1
Just tell what is that is confusing you?
 2 years ago
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