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April 8th, 2012, 12:38 PM   #1
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Absolute Value question

|8-x|>0

is the answer:

A. -8-x
B. -8+x
C. 8-x
D. 8+x

I put B as the answer. Is this correct?
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April 8th, 2012, 02:29 PM   #2
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Re: Absolute Value question

You may geometrically interpret the statement as all numbers x such that the distance between x and 8 is greater than zero, that is all real numbers except 8. We have two cases to consider:

<8" />

>8" />

or we may simply choose to write:

\ne8" />

Thus x is in:

\,\cup\,\(8,\infty\)" />
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April 9th, 2012, 07:59 PM   #3
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Re: Absolute Value question

I too have a question regarding absolute values.

solve algebraically: x = |4x-1|

are 1/3 and 1/5 correct?
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April 9th, 2012, 08:26 PM   #4
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Re: Absolute Value question

You should begin your own topic, but just please do that in the future...

You have two cases to consider:

1.)





2.)







You are correct.
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