Question

3. Elizabeth opened a library with 19,000 books in the year 1998. The number of books increases at a rate of 6.49% each year. Use a graph to predict the number of books in 2020.

A) ≈ 71,160
B) ≈ 75,779
C) ≈ 80,697
D) ≈ 66,824

Answer 1

Answer: ≈ 75,779

Explanation:

Answer 2

The number of books increases at a rate of 6.49% each year so it's a growth function which is
V (t)=V0 (1+r)^t
V (t) number of books in 2020 ?
V0 books in the year 1998 19000
R rate of growth 0.0649
T time 2,020−1,998=22 years

V (22)=19,000×(1+0.0649)^(22)
V (22)=75,778.81 Round your answer to get 75779