Answer:
The domain and the range of the functions are any real number i.e set R.
Explanation:
We are given two functions f(x) = - 7x and g(x) = 7x
Now, it is clear from the above functions that the functions are valid for any real value of x and the corresponding values of y are also real.
Therefore, the domain and the range of the functions are any real number i.e set R. ( Answer )