Answer:
Both the domain and range of the transformed function are the same as those of the parent function.
Explanation:
We have,
The function
is reflected across y-axis, which gives

And then the function is translated to the left by 5 units.
So, the transformed function is

Thus, from the graph below, we get,
Domain of both functions is the set of all real numbers.
Range of both functions is the set
.
That is,
Both the domain and range of the transformed function are the same as those of the parent function.