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Is 0 positive?

Problem Solving — algebra and arithmetic
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by jsl » Sun Sep 14, 2008 2:48 pm
If a question stem states that variables are positive, can you assume that a variable is not negative?

E.g. Each of a, b and c is positive.

Is b > 0 or b >= 0?
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by ramyarams » Sun Sep 14, 2008 3:44 pm
Zero is neither positive nor negative. So it would fall under both the categories, a number which is non-negative - i.e "all the positive numbers and zero" and a number which is non-positive - "zero and all the negative numbers."

I would go for b > 0 and not b >=0. Well thats my two cents. :D.

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Re: Is 0 positive?

by gabriel » Tue Sep 16, 2008 3:49 am
jsl wrote:If a question stem states that variables are positive, can you assume that a variable is not negative?

E.g. Each of a, b and c is positive.

Is b > 0 or b >= 0?
The definition of a positive number is that it is greater than 0, so your answer would be b>0.
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by sudi760mba » Wed Sep 17, 2008 4:48 am
I believe that "zero" to be our "favorite" integer and it is considered to be even.
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