Domain of a function is the set of all the x- values for which the function is defined.
and the range of the function is the set of all the values which are attained by the function.
From the graph of the function we see that the graph look similar to the graph of a modulus function such that the graph is extending to infinity in both the direction.
Also, the graph is plotted for all the real numbers.
and the range of the function if all the real numbers which are greater than or equal to -2.
