document.write( "Question 85483: The question is, find the average rate of change from f from -2 to 2. What is the average rate of change of f from x1 to x2, where x1 and x2 are distinct real numbers?
\n" ); document.write( "f(x) = -1/4x
\n" ); document.write( "I cannot figure out what the question is looking for, any tips? \n" ); document.write( "
Algebra.Com's Answer #61704 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
The question is, find the average rate of change from f from -2 to 2. What is the average rate of change of f from x1 to x2, where x1 and x2 are distinct real numbers?
\n" ); document.write( "f(x) = (-1/4)x
\n" ); document.write( "-------------------
\n" ); document.write( "The average for f(x) as x goes from a to b is [f(b)-f(a)]/[b-a]
\n" ); document.write( "which is the same as the slope of a line thru points (a,f(a)), (b,f(b))
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\n" ); document.write( "Your Problem:
\n" ); document.write( "Average from -2 to 2 is [f(2)-f(-2)]/[2--2]
\n" ); document.write( "=[(-1/4)*2 - (-1/4)(-2)]/[4]
\n" ); document.write( "=[-1/2 - (1/2)]/4
\n" ); document.write( "= [-1/4]
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\n" ); document.write( "\n" ); document.write( "Average from x1 to x2
\n" ); document.write( "= [(-1/4)(x1+x2)]/[x1-x2]
\n" ); document.write( " = [-1/4]
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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