SOLUTION: 3|y-9|<27. Solve and graph

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Question 1066454: 3|y-9|<27. Solve and graph
Answer by josgarithmetic(39623) About Me  (Show Source):
You can put this solution on YOUR website!
abs%28y-9%29%3C9


IF y-9 nonnegative,
y-9%3C9
y%3C9%2B9
y%3C18

IF y-9 negative,
-%28y-9%29%3C9
y-9%3E-9
y%3E0


ANSWER: highlight%280%3Cy%3C18%29

--
CHECK
-1?
3abs%28-1-9%29%3C27
30%3C27---------false, as expected, not within solution.
2?
3abs%282-9%29%3C27
3%2A7%3C27
21%3C27----------true. Okay...
20?
3abs%2820-9%29%3C27
33%3C27-----------false, as expected since not within apparent solution
Check worked.