What is the value of f(x)=2•2^x for f(-2)

Question

asked Jul 20, 2020 183k views

1 Answer

Robby Cornelissen · Answer 1 · 2020-07-25T14:34:23+0000

Answer:

The value of f(-2) is 1/2 or it can be written as 0.5.

Explanation:

The given function is

$f(x)=2\cdot 2^x$

We have to find the value of f(-2).

Substitute x=-2 in the given function to find the value of f(-2).

$f(-2)=2\cdot 2^(-2)$

$f(-2)=2\cdot (1)/(2^(2))$

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

f(-2)=0.5

Therefore the value of f(-2) is 1/2 or it can be written as 0.5.