Answer:
These lines are parallel...
So we know that parallel lines don't intersect. The lines that intersect are perpendicular lines and to tell that lines are perpendicular the mx or the slope would be a reciprocal and the reciprocal of 1/2 would be 2. So therefore we can conclude that the lines are parallel.
Then when we graph it the plus 3 means the line moves 3 units up.
So the graph would look like this...
