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June 3rd, 2011, 12:17 PM   #1
Joined: Jun 2009

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Algebra question


I need to know the value of the expression (3 - x)/(x + 3). I know that an expression such as (x - 3)/(3 - x) would equal -1, but I am not sure what the value of the prior expression would be. Thanks.
jonas is offline  
June 3rd, 2011, 01:10 PM   #2
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Joined: Nov 2010

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Re: Algebra question

Hello there,
this expression doesn't have a certain value.
I mean its value depends on the value of x.
For example:
for x=1 you have 1/2
for x=3 you have 0
for x=-2 you have 5
and so on ....
best regards.
islam is offline  
June 3rd, 2011, 01:14 PM   #3
Joined: Jun 2011

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Re: Algebra question

This expression doesn't have a fixed value; it can change while x is changing. There is one value of x where your expression doesn't exist and that is when x=-3 then you would have to divide by zero and that isn't possible.
link: here you can see this function.
Annelies 123 is offline  
June 3rd, 2011, 01:44 PM   #4
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Re: Algebra question

is variable
Hoempa is offline  

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