Final answer:
The maximum vertical distance between the line y=x² and the parabola y=x², which are the same, is zero.
Step-by-step explanation:
The question appears to ask about the maximum vertical distance between the line y=x² and the parabola y=x², but since they are the same graph, the maximum vertical distance is always zero for any value of x. However, the question might contain a typo, and the student could be referring to different equations. To find the maximum vertical distance between two different functions, one would typically need to find the difference in the y-values of the two functions and then determine the maximum value of this difference within the given range.