Divides both start and end points by given x,y

import { Lines } from 'https://unpkg.com/ixfx/dist/geometry.js'

// Line 1,1 -> 10,10
const l = Lines.fromNumbers(1,1,10,10);
const ll = Lines.divide(l, {x:2, y:4});
// Yields: 0.5,0.25 -> 5,2.5

Dividing by zero will give Infinity for that dimension.