Respuesta :

for the first one it’s either negative as it’s going down or it’s none as it’s usually a straight line. if it was positive the line would be going up

Answer:

Just draw a straight line that intersects or is close with most of the points, in this case the line would be going down meaning it's a negative  data point. Now just follow the line and see where it will be when y=2billion. Remember this is not a exact answer your just seeing where most of the points are and predicting based on that.