Find the domain of the graphed function.

For every point on the curve, imagine drawing a vertical line until that vertical line reaches the x axis.

Doing this will essentially shade the x axis number line from x = -4 to x = 2

The graph shows points in which the x coordinate is as small as -4 or as large as 2, or anything in between

Domain: 
Choice B

note: the domain is the set of allowed inputs or x values