Answer:
The options which best represents the range of the function is:
[-1,∞)
Step-by-step explanation:
Domain of a function--
The domain of a function is the set of all the possible x -values of a function for which the function is defined.
and Range of a function--
Is the set of all the values which are attained by a function in it's domain.
By looking at the graph of a function we see that the function is defined for all the real values and in this domain the function attains a minimum values as -1.
The function is first strictly decreasing in the interval (-∞,1)
and then it is strictly increasing in the interval (1,∞).
Hence, the function receives all the value greater than or equal to -1.
i.e. The range of the function is: [-1,∞)
