Question

What is the domain of the functions on the graph

Answer 1

I would say all real numbers as the domain for this would be (-∞,∞).

However, I may be wrong, math is not my strong suit.

Answer 2

The domain refers to the x-values. As we can see in the graph, the line stretches across on both sides infinitely. That means that the x values will go on forever, both on the positive side and the negative side, signifying that your answer is the first choice.