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Algebra 13 Online
OpenStudy (thedj4jc):

Which of the solution sets is all real numbers? |x| < -1 |x| = -1 |x| > -1

OpenStudy (amistre64):

what is the range of |x|?

OpenStudy (thedj4jc):

I'm not sure.

OpenStudy (amistre64):

can the results ever be negative when we put a number into |x| ?

OpenStudy (thedj4jc):

No, the to lines on the outside of it mean absolute value, which is just the number it is away from 0.

OpenStudy (amistre64):

good, then for any real number x, the absolute value of x is always greater than -1

OpenStudy (amistre64):

since -1 is less than 0

OpenStudy (thedj4jc):

So, my answer would be C. Because it can't be equal to -1 and can't be less than it either.

OpenStudy (amistre64):

correct the domain of |x| is all real numbers the range of |x| is [0,+inf) therefore the solution set that contains all real numbers is the one that satisfies |x| < -1

OpenStudy (amistre64):

|x| > -1 lol

OpenStudy (thedj4jc):

Thank you so much!!

OpenStudy (amistre64):

youre welcome

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