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At the Keaveny Hardware Manufacturing Company they need to meet very specific criteria for the diameter of the threads of # wood screws. The diameter of the threads must be of an inch. The width cannot vary more than of an inch from the specified diameter. Write and solve an appropriate absolute value inequality for this situation. Graph your solution.    

Review Section 9.1.3 on absolute value equations and inequalities, specifically problem 9-29.

Use the eTool below to graph the inequalitiy.
Click link at the right to view full eTool version : Int1 9-94 HW eTool.