Answer:
(-inf, inf)
Step-by-step explanation:
Remember, the domain of the function looks at purely the input values (x-axis), not your output values (y-axis).
Keeping this in mind, you can see that the x values stretch from the far left, -inf to the far right +inf.
Remember, as infinities aren't considered actual values, you put them in parentheses. This means your answer is (-inf, inf).
