Option B ![y 0](/tpl/images/0077/8485/ae653.png)
Step-by-step explanation:
we have
![f(x)=9(2^{x})](/tpl/images/0077/8485/dad76.png)
This is a exponential function of the form
![y=a(b^{x})](/tpl/images/0077/8485/f9ff4.png)
where
a is the initial value
b is the base
r is the rate
b=1+r
In this problem
a=9
b=2
r=2-1=1=100%
The domain for x is the interval ------> (-∞,∞)
All real real numbers
The range is the interval -----> (0,∞)
![y 0](/tpl/images/0077/8485/ae653.png)
All real numbers greater than zero
see the attached figure to better understand the problem
![What is the range of the exponential function shown below? f(x) = 9.27 a: y< 0 b: y> 0 c:](/tpl/images/0077/8485/9f4ba.jpg)