It can be shown that the parametric equations $$x=x_1+(x_2-x_1)t,\;\;\;y=y_1+(y_2-y_1)t,$$ where $0 \le t \le 1,$ describe the line segment that joins the points $P_1(x_1,y_1)$ and $P_2(x_2,y_2).$

Use this fact to find parametric equations with $0 \le t \le 1$ to represent the line segment from $(x_1,y_1) = (-2, 7)$ to $(x_2,y_2) = (3, -1).$

$x =$

$y =$