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Graphing Inequality Functions

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1- Graph:
-9 ≤ -9x -27 < 9
2- Graph:
-5x-15 > -5 or 3x < -18
3- Graph:
-3x-3 > -9 or 3x < 18

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The expert graphs inequality functions.

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-9 ≤ -9x -27 < 9

What you have here is basically two equations, which you can solve one at a time or simultaneously:
-9 ≤ -9x -27 < 9 // add 27
18 ≤ -9x < 36 // div by -9, reversing inequalities because you div'd by a negative
-4 < x ≤ -2

Now graph both inequalities, x>-4 and x≤-2. Shade your solution ...

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