Question: how to find the distance between two points without a graph?
Answer: The distance formula is really just a restatement of the Pythagorean theorem. ... 
(change in x)2 + (change in y)2 = (distance)2 ... 
From there, if we solve for distance, we find:
D = √(Δx2 + Δy2)
If you have any further questions, please let me know.