document.write( "Question 1165067: Write the rule for this function. x1 -1
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Algebra.Com's Answer #789528 by ikleyn(52788)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "The rule is  THIS :   to calculate an output,  take an input value and subtract  1  (one)  from it.\r
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