Interval notation problem
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Interval notation problem

[From: ] [author: ] [Date: 12-06-06] [Hit: ]
......
3x+2 ≤ -7 or -2x+1 ≤ 9

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3x+2 ≤ -7 or -2x+1 ≤ 9
-2 -2 -1 -1
3X ≤ -9 -2X≤8
X ≤ -3 X≥-4 (sign changes because of divide by negative)

The Final Answer Is:
[-3,-4] (This [ not this ( because of or equal to)
1
keywords: problem,Interval,notation,Interval notation problem
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