The Point A Is At –2 And The Point B Is At 7. Marissa Would Like To Divide This Line Segment In A 4:3 Ratio, And She Would Like To Use The Formula X = (X2 – X1) + X1. What Values Should She Substitute Into The Formula? A = A + B = X1 = X2 =. What values should she substitute into the formula? To divide the line segment between points a and b in a 4:3 ratio, we will use the formula:

What values should she substitute into the formula? M is the part of the ratio corresponding to point a (which is 4), n is the part of the ratio. The general formula to find the coordinates of a point on the cartesian plane, say p (x,y) that divides a line segment with coordinates a (x1,y1) and b (x2,y2) in a certain ratio.