Question

Use the graph to answer the questionWhat is the average rate of change of f(x) between P and Q?

Answer 1

The average rate of change of a function over a interval [a,b] is given by:

`r=(f(b)-f(a))/(b-a)`

Where, in this case:

`\begin{gathered} a=1 \\ b=2 \\ f(a)=0 \\ f(b)=3 \\ so: \\ r=(3-0)/(2-1)=(3)/(1)=3 \end{gathered}`

Answer:

D. 3