In a line graph showing the results from a twofactor experim

In a line graph showing the results from a two-factor experiment, the levels of factor B are presented on the X-axis and separate lines are used to display the means for A1 and A2. If the points on the line for A1 are consistently 5 points higher than the corresponding point on the line for A2, what pattern of results is indicated?

Since A1 and A2 do not intersect at any point, this shows there is no interaction.