document.write( "Question 431966: For the function, find the average rate of change of f from 1 to x:
\n" ); document.write( "f(x) = x3 + x
\n" ); document.write( " A. 1
\n" ); document.write( "B. x2+ 2
\n" ); document.write( "C.
\n" ); document.write( "D. x2+ x + 2
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Algebra.Com's Answer #299654 by richard1234(7193)\"\" \"About 
You can put this solution on YOUR website!
, so choice D is correct. \n" ); document.write( "
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