Question

Which exponential function shows growth f(x)=2(.5)x f(x)=2(3)x f(x)=.5(.03)x f(x)=3(.8)x

Answer 1

For this case we have functions of the form:
y = A * (b) ^ x
Where,
A: initial amount
b: rate of change
x: independent variable
We have two cases:
b <1: the function decreases
b> 1: the function grows.
The function that shows growth for this case is:
f (x) = 2 (3) ^ x
Answer:
f (x) = 2 (3) ^ x