It can be shown that the parametric equations x=x_1 + (x_2-x_1)t and y=y_1 + (y_2-y_1)t where t is on [0,1], describe the line segment that joins the point P1(x1,y1) and P2(x2,y2). Use this fact to find the parameterization of the line segment from (-2,7) to (3,-1)