SOLUTION: the absolute value of 1/2x - 1 < 1

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Question 119825: the absolute value of 1/2x - 1 < 1
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

abs%28%281%2F2%29x-1%29%3C1 Start with the given inequality


Break up the absolute value (remember, if you have abs%28x%29%3C+a, then x+%3E+-a and x+%3C+a)

%281%2F2%29x-1+%3E+-1 and %281%2F2%29x-1+%3C+1 Break up the absolute value inequality using the given rule


-1+%3C+%281%2F2%29x-1+%3C+1 Combine the two inequalities to get a compound inequality



0+%3C+%281%2F2%29x+%3C+2 Add 1 to all sides



0+%3C+x+%3C+4 Multiply all sides by 2 to isolate x


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Answer:

So our answer is

0+%3C+x+%3C+4



which looks like this in interval notation






if you wanted to graph the solution set, you would get

Graph of the solution set in blue and the excluded values represented by open circles