Calculate the Average Rate of Change of the Given Function $[ 1,3 ]$

Short Answer

Calculate the average rate of change of the given function over the interval $[ 1,3 ]$ . $$\begin{array} { | l | l | l | l | l | } \hline \boldsymbol { x } & 0 & 1 & 2 & 3 \\\hline f ( x ) & 5 & 1 & 1 & - 13 \\\hline\end{array}$$ ​
​