Question

What is the domain of the exponential function?
y=8(0.2)^x
A.{x| 0.2<x<8}
B.{x|0< x<8}
c. {x|x> )}
D.{x|x E R}

Answer 1

The domain of the exponential function \( y = 8(0.2)^x \) is all real numbers since you can substitute any real number for \( x \) and the function will produce a valid output.

Thus, the correct answer is:
**D. {x | x ∈ ℝ}**.