The table shows the projected number of visitors (in thousands) at a zoo.

Question

Year

Zoo visitors (thousands)

1

64

2

32

3

16

8

4

An equation, f (x), for the projected number of zoo visitors (in thousands) in year z can be represented by f (x) = a(b)² where a=0 and b>0. Construct the equation.

Answer 1

f(x) = 64(0.5)^x