Question

how do i find the y^2 - Y^1 and X^2 - X^1 in slope?

Answer 1

that's slope formula; you need two sets of point to find slope

Answer 2

ok say, y=-2, x=3

Answer 3

would i multiply them?

Answer 4

y2 - y1 = m(x2 - x1)
you need to know what m(slope ) is