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Find the average rate of change of the function from x=1 to x=2. f(x)=−18x2

Find the average rate of change of the function from x=1 to x=2. f(x)=−18x2-example-1
User Ziggear
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1 Answer

12 votes
12 votes

Given function is


f(x)=-(18)/(x^2)

To find the average rate of change of the function from x=1 to x=2.

Now,


\begin{gathered} f(1)=-18 \\ f(2)=-(18)/(4) \end{gathered}

So, the averag erate of change is


\begin{gathered} (f(2)-f(1))/(2-1)=(-(18)/(4)-(-18))/(2-1) \\ =(18-(18)/(4))/(1) \\ =(54)/(4) \\ =13.5 \end{gathered}

So, the average rate of change is 13.5.

User George WS
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