Jack and Jill are trying to find the slope of a line segment connecting two points, (x1, y1) and (x2, y2). Jack uses the formula m = y2 - y1 x2 - x1 . Jill mistakenly uses a different formula, but still gets the right answer. Which formula COULD she have used?

The right formula to get the slope is: m =(y₂-y₁)/(x₂-x₁)
But if you right it the other way round m = (y₁-y₂)/(x₁-x₂)

Both give the same the answer but the 1st is the right one