Choose the correct domain of the function in interval notation.
(-∞, ∞)
[-1, ∞)
(-∞, -1]
(-∞, 1]

Answer:
domain : (-∞,∞)
Step-by-step explanation:
Domain is the set of x values for which the function is defined
To find domain we check the x value for which the function is undefined
In the give graph , the graph is continuous and smooth.
There is no break in the graph.
We have graph for all values of x
So domain is set of all real values
domain : (-∞,∞)