Question

Evaluate the exponential function f(x)=(1/2)^x. Which value completes this table?

Answer 1

Answer:

D. 2

Step-by-step explanation:

Replace values of x to evaluate the exponential function $f(x)=(\frac{1}{2})^{x}$:

1. When x = -4

$f(x)=(\frac{1}{2})^{-4}$

$f(x)=16$

2. When x = 0

$f(x)=(\frac{1}{2})^{0}$

$f(x)=1$

3. When x = 1

$f(x)=(\frac{1}{2})^{1}$

$f(x)=\frac{1}{2}$

4. When x = 3

$f(x)=(\frac{1}{2})^{3}$

$f(x)=\frac{1}{8}$

5. When x = -1

$f(x)=(\frac{1}{2})^{-1}$

$f(x)=2$

Answer 2

0.5^-1=2
the answer is 2