document.write( "Question 1161509: Determine the instantaneous rate of change of the function\r
\n" ); document.write( "\n" ); document.write( "f(x) = x^3 + 3x^2 - 4 at x=6\r
\n" ); document.write( "\n" ); document.write( "a) 212
\n" ); document.write( "b) -212
\n" ); document.write( "c) 144
\n" ); document.write( "d) -144
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Algebra.Com's Answer #785090 by Alan3354(69443)\"\" \"About 
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Determine the instantaneous rate of change of the function\r
\n" ); document.write( "\n" ); document.write( "f(x) = x^3 + 3x^2 - 4 at x=6
\n" ); document.write( "f'(x) = 3x^2 + 6x
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\n" ); document.write( "f'(6) = 3*36 + 36 = 144
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\n" ); document.write( "Do you know what that means?
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