Awarding more points plz in photo below, about domain of graph

Domain = all real numbers

Step-by-step explanation:

The domain of a function is the set of x-values for which the function is defined.

When we have a graphical representation of a function, we look if the function is continuous for all values of x or not. If it is, the domain is the set of all real numbers. If it is not, we look from what value till what value the function is defined for , x-values basically.

Looking at this function, we see that it stretches forever to the left and forever to the upward direction (also advancing right limitless as well).

We want the domain (x values), which concerns with LEFT and RIGHT. So, we can see that this function is continuous for all values of x (it goes on and on to right and left). So we can say the domain is the set of all real numbers.

Domain = all real numbers