Example 7 - including 9 and 1. The solution set can be...

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Example 3 Solve for  x : –12 ≤ 2  x  + 6 ≤ 8.  Since this compound inequality has no connecting word written, it is understood to be “and.” It is  translated into the following compound sentence. –9 ≤  x  indicates all the numbers to the right of and including –9, and  x  ≤ 1 indicates all the numbers  to the left of and including 1. The intersection of these graphs is the numbers between –9 and 1, 
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Unformatted text preview: including 9 and 1. The solution set can be written as { x | x 9 and x 1} or { x |9 x 1} The graph of the solution set is shown in Figure 3. Figure 3. Dots indicate inclusion of the points....
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