Answer:
Consider the exponential function
-----------(1)
and when it is reflected across y axis , it's equation becomes
--------------------------(2)
As, domain of a function is defined as the set of all values of x , for which y is defined.
So, for function 1, domain is set of all real numbers.That is , x∈[-∞ ,∞]
And for function 2, which is reflection of function 1, it's domain will also be set of all real numbers.That is , x ∈ [-∞, ∞]
So, Simon is correct between Alissa and himself, as he is saying if an exponential function is reflected across the y-axis, the domain will still be all real numbers is true statement.
