Question

Question 10: find the average rate of change of the function on the interval (2 5 )

Answer 1

$\begin{gathered} f(5)=2.5\cdot5^2-7\cdot5+5=32.5 \\ f(2)=2.5\cdot4-7\cdot2+5=1 \\ \text{arc}=\frac{32.5-1}{5-2}=\frac{31.5}{3}=10.5 \end{gathered}$