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Mathematics 7 Online
OpenStudy (anonymous):

Okay, I need help with a problem but have to use the math thing.

jimthompson5910 (jim_thompson5910):

you can use the equation editor, or you can draw the problem also, you can attach the image of the problem (screenshot or camera shot of the problem)

OpenStudy (anonymous):

\[\frac{ 1 }{ 2 } \le x \le 0\] How do I solve this?

OpenStudy (anonymous):

Oh, that's a negative 1/2!

jimthompson5910 (jim_thompson5910):

so \[\Large -\frac{1}{2} \le x \le 0\] right?

OpenStudy (anonymous):

Yes, sorry for the mistake!

jimthompson5910 (jim_thompson5910):

it's ok

jimthompson5910 (jim_thompson5910):

so what do you need to do with this inequality?

OpenStudy (jdoe0001):

looks to me it doesn't need solving

OpenStudy (anonymous):

It's asking me to Choose the correct absolute value inequality and graph for the solution.

OpenStudy (anonymous):

I can't screen shot though...

jimthompson5910 (jim_thompson5910):

it's too big to screenshot?

OpenStudy (anonymous):

No, I just can't figure out how to screen shot with a mac.

jimthompson5910 (jim_thompson5910):

oh one sec

OpenStudy (anonymous):

The first answer is |4x+1|\[\le 1\]

jimthompson5910 (jim_thompson5910):

this may help http://support.apple.com/kb/ht5775

OpenStudy (anonymous):

Thanks.

jimthompson5910 (jim_thompson5910):

go ahead and post whenever you're ready

OpenStudy (anonymous):

jimthompson5910 (jim_thompson5910):

ok we can look through these choices and find the proper graph to start off

jimthompson5910 (jim_thompson5910):

how do we graph \[\Large -\frac{1}{2} \le x \le 0\] what's it going to look like on a number line?

OpenStudy (anonymous):

I don't understand what to do with the fraction or how to distribute.

jimthompson5910 (jim_thompson5910):

\[\Large -\frac{1}{2} \le x \le 0\] means that x is between -1/2 and 0 (including both endpoints)

jimthompson5910 (jim_thompson5910):

how do we represent that on a number line?

OpenStudy (anonymous):

Well, one dot one on half and another on zero, both meeting at -1/2?

jimthompson5910 (jim_thompson5910):

|dw:1403560783560:dw|

jimthompson5910 (jim_thompson5910):

Plot closed circles at -1/2 and 0 |dw:1403560828273:dw|

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