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OpenStudy (anonymous):
i still dont understand
OpenStudy (anonymous):
It's asking what values of x make | 3x - 6 | less than 9. You can graph this by drawing y = | 3x - 6 | on a Cartesian coordinate plane and then looking at which values of x make the y value less than 9.
OpenStudy (anonymous):
|dw:1322430762423:dw|
OpenStudy (anonymous):
but shouldnt i make an equation for -9 as well?
OpenStudy (anonymous):
meaning 3x-6 > -9?
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OpenStudy (anonymous):
| 3x-6 | <9 means
-9<3x-6<9
OpenStudy (anonymous):
the numbers that would work are ONLY between -1 and 5? or could the be greater that 5 and less than -1?
OpenStudy (anonymous):
only between -1 and 5
OpenStudy (anonymous):
thank you
OpenStudy (anonymous):
| 3x-6 | <9
--> -9 < 3x-6 < 9
--> a. -9 < 3x-6 and b. 3x-6 < 9
--> a. -9-(-6) < 3x
-->-3 < 3x
-->-1 < x (A)
--> b. 3x-6 <9
-->3x < 9-(-6)
-->3x < 15
--> x< 5 (B)
(A) and (B) mean
-1 < x < 5