In the context of your description, which involves a graph plotting the height of two plants over time, the coordinates of the point of intersection (4, 12) represent the moment in time when both plants are the same height.
Specifically, at 4 months (the x-coordinate), both plants are 12 cm tall (the y-coordinate). In summary, after 4 months, both plants are 12 cm tall. This point of intersection indicates that their growth rates and heights converge at that specific time.