document.write( "Question 1106540: Compute f(2+h)-f(2) /h for each of the following function.
\n" ); document.write( "Assume h does not equal 0.\r
\n" ); document.write( "\n" ); document.write( "a) f(x) = 5
\n" ); document.write( "b) f(x) = x + 5
\n" ); document.write( "c) f(x) = x^2
\n" ); document.write( "d) f(x) = x^2 - x - 1\r
\n" ); document.write( "\n" ); document.write( "Please help, thank you
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Algebra.Com's Answer #721534 by josgarithmetic(39620)\"\" \"About 
You can put this solution on YOUR website!
This is a matter of substituting and simplifying.\r
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\n" ); document.write( "d) f(x) = x^2 - x - 1
\n" ); document.write( "-----------------------------\r
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\n" ); document.write( "\n" ); document.write( "\"%28f%282%2Bh%29-f%282%29%29%2Fh\"----this is the model expression you showed, but only grouping symbols included here for the adjustment.\r
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\n" ); document.write( "\n" ); document.write( "Make the substitution:\r
\n" ); document.write( "\n" ); document.write( "\"%28%282%2Bh%29%5E2-%282%2Bh%29-1-%282%5E2-2-1%29%29%2Fh\"\r
\n" ); document.write( "\n" ); document.write( "and then simplification,...\r
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\n" ); document.write( "\n" ); document.write( "\"%284%2B4h%2Bh%5E2-2-h-1-1%29%2Fh\"\r
\n" ); document.write( "\n" ); document.write( "-\r
\n" ); document.write( "\n" ); document.write( "\"%284%2B4h%2Bh%5E2-2-h-2%29%2Fh\"\r
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\n" ); document.write( "\n" ); document.write( "\"%284-2-2%2B4h%2Bh%5E2-h%29%2Fh\"\r
\n" ); document.write( "\n" ); document.write( "\"%284h-h%2Bh%5E2%29%2Fh\"\r
\n" ); document.write( "\n" ); document.write( "\"%283h%2Bh%5E2%29%2Fh\"\r
\n" ); document.write( "\n" ); document.write( "\"%283%2Bh%29%28h%2Fh%29\"\r
\n" ); document.write( "\n" ); document.write( "\"3%2Bh\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28h%2B3%29\"\r
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\n" ); document.write( "\n" ); document.write( "The following was a MISTAKE ,...
\n" ); document.write( "\"%284h%2Bh%5E2%29%2Fh\"\r
\n" ); document.write( "\n" ); document.write( "\"cross%284%2Bh%29\"
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