Question

Find f(-2) for f(x) = 2(4)^x

Answer 1

2(4)^-2

=2/4^2

2/16

1/8

thanks

Answer 2

f(- 2) =
`(1)/(8)`

Explanation:

To find f(- 2) substitute x = - 2 into f(x) , that is

f(- 2) = 2
`(4)^(-2)` = 2 ×
`(1)/(4^2)` = 2 ×
`(1)/(16)` =
`(2)/(16)` =
`(1)/(8)`