Question

The number of visits to public libraries increased from 1.3 billion in 1999 to 1.5 billion in 2004. Find the average rate of change in the number of public library visits from 1999 to 2004.The average rate of change between 1999 and 2004 was: billion: Simplify your answer. Type an integer or a decimal.)

Answer 1

The average rate of change is defined as:

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

using the information given

a=1999

b=2004

f(a)=1.3

f(b)=1.5

then,

`\begin{gathered} (1.5-1.3)/(2004-1999) \\ (0.2)/(5) \\ 0.04 \end{gathered}`

The average rate of change between 1999 and 2004 was 0.04 billion.