Question

what is x & y in distance formula

Answer 1

x and y are the coordinates of the points joining the line.

Answer 2

The distance 'd' between the points A = (x1, y1) and B = (x2, y2) is given by the formula:


This formula is an application of Pythagoras' theorem for right triangles:


For example, consider the two points A (1,4) and B (4,0),

so:  x1 = 1,  y1 = 4,  x2 = 4, and y2 = 0.