Math Problem

[cpt_azad]

don't call me a n00b (i was never good at math). but it seems that i have no idea or recollection of this type of question:

|-6| or |2-4| and even |1/2-3/4| . wtf are these | line things there for (no they are not brackets, just straight lines)? please help me out! i just need to know what the answer is and how to solve the question/problem (solution, formula, etc.). from what i can assertain, it's some sort of LCM type problem (lowest common multiple?). so please, help a dumass out

[h1]

To me, it's Math.abs(int).

To you, it's absolute value, which strips any negativity from the number. Absolute value gets evaluated only after everything inside it already is.

[kAb]

they are absolute value. it means basically always positive
|x| cannot equal -6

but |x| can equal 6

the absolute value of |2-4| is 2 because it must be positive.

[cpt_azad]

so |2| would equal -2?

[4th gen]

Originally posted by cpt_azad@8 February 2004 - 02:56
so |2| would equal -2?

no, |-2| = 2

[cpt_azad]

wait, here:

- |-2/3| would equal 2/3?
- |-1|+|3| ??
- |5|-|-2| ??
- |-3|-|-4| ??
- |1.2-1.5| would equal 1.2?
- |4| ??
- |1/2-3/4| would equal 1/2??
- |-6| would equal 6??

also, how do graph these kind of numbers on number lines? do you treat them as normal numbers and substitute negative ones for postivies?:

how would you graph the following on ONE number line:

|-1| |2| |square root of 5| |square root of -3| (last i heard, you can't square root negative numbers, right?) i'm so confused, thanks for the help kAB, i kinda (kinda as in 3%) understand it now, i think.

[cpt_azad]

Originally posted by 4th gen+7 February 2004 - 19:57--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (4th gen @ 7 February 2004 - 19:57)</td></tr><tr><td id='QUOTE'> <!--QuoteBegin-cpt_azad@8 February 2004 - 02:56
so |2| would equal -2?

no, |-2| = 2 [/b][/quote]
so what would |2| be? 2?

[h1]

Originally posted by cpt_azad@7 February 2004 - 23:01
wait, here:

- |-2/3| would equal 2/3?
- |-1|+|3| ??
- |5|-|-2| ??
- |-3|-|-4| ??
- |1.2-1.5| would equal 1.2?
- |4| ??
- |1/2-3/4| would equal 1/2??
- |-6| would equal 6??

also, how do graph these kind of numbers on number lines? do you treat them as normal numbers and substitute negative ones for postivies?:

how would you graph the following on ONE number line:

|-1| |2| |square root of 5| |square root of -3| (last i heard, you can&#39;t square root negative numbers, right?) i&#39;m so confused, thanks for the help kAB, i kinda (kinda as in 3%) understand it now, i think.

Just evaluate whatever&#39;s inside the lines and make it positive.

So your answers would be:

• 0.6 &reg;
• 4
• 3
• -1
• 0.3
• 4
• 0.25
• 6

All of the following are inclusive:

• 1
• 2
• sqrt(5)
• 3i

Square roots of negative numbers are represented on the imaginary plane, not the Cartesian plane.

[cpt_azad]

bumP?

[cpt_azad]

Originally posted by haxor41789+7 February 2004 - 20:08--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (haxor41789 @ 7 February 2004 - 20:08)</td></tr><tr><td id='QUOTE'> <!--QuoteBegin-cpt_azad@7 February 2004 - 23:01
wait, here:

-&nbsp; |-2/3| would equal 2/3?
-&nbsp; |-1|+|3| ??
-&nbsp; |5|-|-2| ??
-&nbsp; |-3|-|-4| ??
-&nbsp; |1.2-1.5| would equal 1.2?
-&nbsp; |4| ??
-&nbsp; |1/2-3/4| would equal 1/2??
-&nbsp; |-6| would equal 6??

also, how do graph these kind of numbers on number lines? do you treat them as normal numbers and substitute negative ones for postivies?:

how would you graph the following on ONE number line:

|-1|&nbsp; |2|&nbsp; |square root of 5|&nbsp; |square root of -3| (last i heard, you can&#39;t square root negative numbers, right?)&nbsp; i&#39;m so confused, thanks for the help kAB, i kinda (kinda as in 3%) understand it now, i think.

Just evaluate whatever&#39;s inside the lines and make it positive.

So your answers would be:

• 0.6 ®
• 4
• 3
• -1
• 0.3
• 4
• 0.25
• 6

All of the following are inclusive:

• 1
• 2
• sqrt(5)
• 3i

Square roots of negative numbers are represented on the imaginary plane, not the Cartesian plane. [/b][/quote]
thanks man&#33; really needed that&#33; i think i get it now (negative square roots being irrational)