What is the domain and range of the function

Answer:
Option d is correct.
Domain = all real number
range = positive real numbers
Step-by-step explanation:
Given the function: [tex]y=f(x) = a^x[/tex]
Domain of the function is all real numbers except where the expression is undefined.
In this case, there is no real number that makes the expression undefined.
Domain of f(x) = [tex](-\infty , \infty)[/tex] = {a | a∈R}
Range is the set of all valid f(x) values.
[tex](0,1) \cup (1, \infty)[/tex]
[tex]\{y | y\neq 1 , y>0\}[/tex]
Therefore, Domain is all real number and the range of function is positive real number