Answer:
All real numbers
Step-by-step explanation:
Here, we want to get the domain
The domain refers to the possible x values of the function
As we can see, the plot extends thoroughout the entirety of the graph
This extends from positive infinity to negative infinity
This means that the domain is all real
numbers
so, the equation of the line shown is y=2x-1
if the equation you are trying to write has a y-intercept of 4, the equation would be y=2x+4
Hope that helps ya!