jack4793 jack4793
  • 20-02-2019
  • Mathematics
contestada

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

Respuesta :

erinna erinna
  • 05-07-2019

Answer:

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

Step-by-step explanation:

The given function is

[tex]f(x)=2\cdot 2^x[/tex]

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

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

[tex]f(-2)=2\cdot 2^(-2)[/tex]

[tex]f(-2)=2\cdot \frac{1}{2^(2)}[/tex]

[tex]f(-2)=\frac{1}{2}[/tex]

[tex]f(-2)=0.5[/tex]

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

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