document.write( "Question 752214: >1. Find the average rate of change of f(x)=x^3-9x+9:
\n" ); document.write( "a) from -8 to -2
\n" ); document.write( "b) from -1 to 1
\n" ); document.write( "c) from 1 to 4\r
\n" ); document.write( "\n" ); document.write( "a) what is averge rate of change of f (x) =x^3-9x+9 from -8 to -2?
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Algebra.Com's Answer #457629 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
1. Find the average rate of change of
\n" ); document.write( "f(x)=x^3-9x+9:
\n" ); document.write( "a) from -8 to -2
\n" ); document.write( "ave rate = [f(-2)-f(-8)]/[-2-(-8)]
\n" ); document.write( "f(-2) = -8+18+9 = 19
\n" ); document.write( "f(-8) = -64+72+9 = 17
\n" ); document.write( "f(-2)-f(-8) = 2
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\n" ); document.write( "ave rate = 2/6 = 1/3
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\n" ); document.write( "Use the same procedure to find answers for b, and c.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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\n" ); document.write( "b) from -1 to 1
\n" ); document.write( "c) from 1 to 4
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