Question

Use the function below to find f(3) ........ F(x)=4•(1/3)^x

Answer 1

4(1/3)^3
4 * 1/3^3
1 * 4 / 3^3
4/3^3
= 4/27

Answer 2

The value of f(3) is 0.148(approx)

Explanation:

Given the function:
`f(x) = 4((1)/(3))^x` ......[1]

we have to find the value of f(3).

substitute the value of x =3 in [1]

use:
`((a)/(b))^n = (a^n)/(b^n)`

then, we have;

`f(3) = 4((1)/(3))^3 = (4)/(3^3) =(4)/(27) = 0.1481481....`

therefore, the value of f(3) is 0.148(approx)